# Quiz 5: Ratio and Proportion

Mathematics

Free

Essay

Q 2Q 2

A recipe can be used to make as much of a mixture as you need as long as the ingredients are kept proportional. Use the recipe for a homemade mixture of sugar water for hummingbird feeders to answer these problems.
What is the ratio of sugar to water in the recipe What is the ratio of water to sugar

Free

Essay

In the recipe for a homemade mixture of sugar water for hummingbird feeders, the ratio of sugar to water must be to 4 ratios. So basically 1 part of sugar is mixed with, 4 parts of water, therefore the required ratio of sugar to water in the recipe is In other words 4 part of water is mixed with, 1 part of sugar, therefore the required ratio of water to sugar in the recipe is

Q 3Q 3

Write each ratio as a fraction in lowest terms. Change to the same units when necessary, using the table of measurement comparisons in the first section of this chapter. Use the information in the graph to answer Exercises 1-3.
Ratio of orca whale's length to whale shark's length

Free

Essay

Let us draw the given table of average length of shark and whales: From the above table it is very clear that the ratio of Orca whale's length to whale shark's length is . Now we write the ratio in lowest term by dividing out common factors, Therefore the ratio in lowest term is

Q 4Q 4

Write each rate or ratio as a fraction in lowest terms. Change to the same units when necessary.
16 fish to 20 fish

Free

Essay

Free

Essay

Q 6Q 6

A recipe can be used to make as much of a mixture as you need as long as the ingredients are kept proportional. Use the recipe for a homemade mixture of sugar water for hummingbird feeders to answer these problems.
Complete each table.

Free

Essay

Q 7Q 7

Write each ratio as a fraction in lowest terms. Change to the same units when necessary, using the table of measurement comparisons in the first section of this chapter. Use the information in the graph to answer Exercises 1-3.
Ratio of blue whale's length to great white shark's length

Free

Essay

Q 8Q 8

Write each rate or ratio as a fraction in lowest terms. Change to the same units when necessary.
300 miles on 15 gallons

Free

Essay

Free

Essay

Q 10Q 10

A recipe can be used to make as much of a mixture as you need as long as the ingredients are kept proportional. Use the recipe for a homemade mixture of sugar water for hummingbird feeders to answer these problems.
How much water would you need if you used
3 cups of sugar
4 cups of sugar
1/3 cup of sugar

Free

Essay

Q 11Q 11

Write each ratio as a fraction in lowest terms. Change to the same units when necessary, using the table of measurement comparisons in the first section of this chapter. Use the information in the graph to answer Exercises 1-3.
Which two animals' lengths give a ratio of There are several answers.

Free

Essay

Q 12Q 12

Write each rate or ratio as a fraction in lowest terms. Change to the same units when necessary.
$15 for 75 minutes

Free

Essay

Free

Essay

Q 14Q 14

A recipe can be used to make as much of a mixture as you need as long as the ingredients are kept proportional. Use the recipe for a homemade mixture of sugar water for hummingbird feeders to answer these problems.
As you change the amounts of water and sugar, should you change the length of time that you boil the mixture Explain your answer.

Free

Essay

Free

Essay

Q 16Q 16

Write each rate or ratio as a fraction in lowest terms. Change to the same units when necessary.
3 hours to 40 minutes

Free

Essay

Free

Essay

Free

Essay

Q 19Q 19

Write each rate or ratio as a fraction in lowest terms. Change to the same units when necessary.
The little theater at our college has 320 seats. The auditorium has 1200 seats. Find the ratio of auditorium seats to theater seats.

Free

Essay

Free

Essay

Free

Essay

Q 22Q 22

Write each rate or ratio as a fraction in lowest terms. Change to the same units when necessary.
Use the information in the table about Quizno's honey mustard chicken sub sandwich to find the best buy.
Source: Quizno's

Free

Essay

Free

Essay

Free

Essay

Q 25Q 25

Write each rate or ratio as a fraction in lowest terms. Change to the same units when necessary.
Find the best buy on spaghetti sauce. You have a coupon for 75¢ off Brand X and a coupon for 50¢ off Brand Y.
26 ounces of Brand X for $3.89
16 ounces of Brand Y for $1.89
14 ounces of Brand Z for $1.29

Free

Essay

Free

Essay

Free

Essay

Q 28Q 28

Write each rate or ratio as a fraction in lowest terms. Change to the same units when necessary.
Suppose the ratio of your income last year to your income this year is 3 to 2. Explain what this means. Give an example of the dollars earned last year and this year that fits the 3 to 2 ratio.

Free

Essay

Free

Essay

Free

True False

Q 31Q 31

Determine whether each proportion is true or false. Show your work and then write true or false.

Free

Essay

Free

Essay

Free

True False

Q 34Q 34

Determine whether each proportion is true or false. Show your work and then write true or false.

Free

Essay

Free

Essay

Free

Essay

Q 37Q 37

Find the unknown number in each proportion. In Problems 11-13, round the answers to the nearest hundredth, if necessary.

Free

Essay

Free

Essay

Q 39Q 39

Jake sold $350 worth of his kachina figures. Ramona sold $500 worth of her pottery. What is the ratio of Ramona's sales to Jake's sales

Free

Essay

Q 40Q 40

Find the unknown number in each proportion. In Problems 11-13, round the answers to the nearest hundredth, if necessary.

Free

Essay

Free

Essay

Q 42Q 42

Wei's new car gets 35 miles per gallon. Her old car got 25 miles per gallon. Find the ratio of the new car's mileage to the old car's mileage.

Free

Essay

Q 43Q 43

Find the unknown number in each proportion. In Problems 11-13, round the answers to the nearest hundredth, if necessary.

Free

Essay

Free

Essay

Q 45Q 45

This fall, 6000 students are taking math courses and 7200 students are taking English courses. Find the ratio of math students to English students.

Free

Essay

Q 46Q 46Find the unknown number in each proportion. In Problems 11-13, round the answers to the nearest hundredth, if necessary.

Free

Essay

Free

Essay

Free

Essay

Q 49Q 49

Set up and solve a proportion for each application problem.
Pedro entered 18 orders into his computer in thirty minutes at his job. At that rate, how many orders could he enter in forty minutes

Free

Essay

Free

Essay

Free

Essay

Q 52Q 52

Set up and solve a proportion for each application problem.
Just 0.8 ounce of wildflower seeds is enough for 50 square feet of ground. What weight of seeds is needed for a garden with 225 square feet ( Source: White Swan Ltd.)

Free

Essay

Q 53Q 53

In a survey of 1000 adults, 550 drank coffee daily, 250 drank coffee occasionally, and 200 never drank coffee. Use this information for Exercises 17-18. Write each ratio as a fraction in lowest terms.
What is the ratio of those who do not drink coffee to the total number of people in the survey

Free

Essay

Q 54Q 54

Write each rate as a fraction in lowest terms.
When entering data into his computer, Patrick can type four pages in 20 minutes. Give his rate in pages per minute and minutes per page.

Free

Essay

Q 55Q 55

Set up and solve a proportion for each application problem.
About 2 out of every 15 people are left-handed. How many of the 650 students in our school would you expect to be left-handed Round to the nearest whole number.

Free

Essay

Q 56Q 56

In a survey of 1000 adults, 550 drank coffee daily, 250 drank coffee occasionally, and 200 never drank coffee. Use this information for Exercises 17-18. Write each ratio as a fraction in lowest terms.
Find the ratio of all the adults who drink coffee to those who never drink it.

Free

Essay

Q 57Q 57

Write each rate as a fraction in lowest terms.
Elena made $60 in three hours. Give her earnings in dollars per hour and hours per dollar.

Free

Essay

Q 58Q 58

Set up and solve a proportion for each application problem.
A student set up the proportion for Problem 17 this way and arrived at an answer of 4875.
Because the cross products are equal, the student said the answer is correct. Is the student right Explain why or why not.
About 2 out of every 15 people are left-handed. How many of the 650 students in our school would you expect to be left-handed Round to the nearest whole number.

Free

Essay

Q 59Q 59

Nest boxes for birds are made with different sizes of entry holes. Then, only certain types of birds can use the nest box and it helps prevent entry by predators. Use the information in the table to answer Exercises 19-20. The diameter is the distance across the opening at its widest point.
List the nest box openings in order from smallest to largest.

Free

Essay

Free

Essay

Q 61Q 61

Set up and solve a proportion for each application problem.
A medication is given at the rate of 8.2 grams for every 50 pounds of body weight. How much should be given to a 145-pound person Round to the nearest tenth of a gram.

Free

Essay

Q 62Q 62

Nest boxes for birds are made with different sizes of entry holes. Then, only certain types of birds can use the nest box and it helps prevent entry by predators. Use the information in the table to answer Exercises 19-20. The diameter is the distance across the opening at its widest point.
What is the difference in diameter between the openings for an eastern bluebird and a western bluebird Write your answer as a fraction and as a decimal.

Free

Essay

Q 63Q 63

Find the best buy.
Dog food; you have a coupon for $1 off on 8 pounds or more.
35.2 pounds for $36.96
17.6 pounds for $18.69
3.5 pounds for $4.25

Free

Essay

Q 64Q 64

Set up and solve a proportion for each application problem.
On a scale model, 1 in. represents 8 ft. If a building in the model is 7.5 in. tall, what is the actual height of the building in feet

Free

Essay

Q 65Q 65

Find the unknown number in each proportion. Round your answers to the nearest hundredth, when necessary.

Free

True False

Q 66Q 66

Use either the method of writing in lowest terms or the method of finding cross products to decide whether each proportion is true or false. Show your work and then write true or false.

Free

Essay

Q 67Q 67

Find the unknown number in each proportion. Round your answers to the nearest hundredth, when necessary.

Free

True False

Q 68Q 68

Use either the method of writing in lowest terms or the method of finding cross products to decide whether each proportion is true or false. Show your work and then write true or false.

Free

Essay

Q 69Q 69

Find the unknown number in each proportion. Round your answers to the nearest hundredth, when necessary.

Free

True False

Q 70Q 70

Use either the method of writing in lowest terms or the method of finding cross products to decide whether each proportion is true or false. Show your work and then write true or false.

Free

Essay

Q 71Q 71

Solve each application problem.
The college honor society has a goal of collecting 1500 pounds of food to fill Thanksgiving baskets. So far it has collected 5/6 of the goal. How many more pounds are needed

Free

True False

Q 72Q 72Use either the method of writing in lowest terms or the method of finding cross products to decide whether each proportion is true or false. Show your work and then write true or false.

Free

Essay

Q 73Q 73

Solve each application problem.
Tara has a photo that is 10 centimeters wide by 15 centimeters long. If the photo is enlarged to a length of 40 centimeters, find the new width, to the nearest tenth.

Free

True False

Q 74Q 74Use either the method of writing in lowest terms or the method of finding cross products to decide whether each proportion is true or false. Show your work and then write true or false.

Free

Essay

Q 75Q 75

Solve each application problem.
The distance around Dunning Pond is 1 1/10 miles. Norma ran around the pond four times in the morning and 2 ½ times in the afternoon. How far did she run in all

Free

True False

Q 76Q 76Use either the method of writing in lowest terms or the method of finding cross products to decide whether each proportion is true or false. Show your work and then write true or false.

Free

Essay

Q 77Q 77

Solve each application problem.
Find the best buy on instant mashed potatoes. You have a coupon for 50¢ off either the 34-serving or 65-serving box.
A box that makes 20 servings for $2.15
A box that makes 34 servings for $3.35
A box that makes 65 servings for $10.41

Free

Essay

Q 78Q 78

Find the unknown number in each proportion. Round answers to the nearest hundredth, if necessary.

Free

Essay

Q 79Q 79

Solve each application problem.
In a survey, 5 out of 8 apartment residents said they are sometimes bothered by noise from their neighbors. How many of the 224 residents at Harris Towers would you expect to be bothered by noise

Free

Essay

Q 80Q 80

Find the unknown number in each proportion. Round answers to the nearest hundredth, if necessary.

Free

Essay

Q 81Q 81

Solve each application problem.
The directions on a bottle of plant food call for ½ teaspoon in two quarts of water. How much plant food is needed for five quarts ( Source: Schultz Company.)

Free

Essay

Q 82Q 82

Find the unknown number in each proportion. Round answers to the nearest hundredth, if necessary.

Free

Essay

Q 83Q 83

Use the information in the table on international long-distance calling card rates to answer Exercises 30-34. Round answers to the nearest whole minute when necessary.
List the per-minute rates from least to greatest.

Free

Essay

Q 84Q 84

Find the unknown number in each proportion. Round answers to the nearest hundredth, if necessary.

Free

Essay

Q 85Q 85

Use the information in the table on international long-distance calling card rates to answer Exercises 30-34. Round answers to the nearest whole minute when necessary.
If you buy a $20 calling card, how long a call could you make to a cell phone in Japan

Free

Essay

Q 86Q 86

Find the unknown number in each proportion. Round answers to the nearest hundredth, if necessary.

Free

Essay

Q 87Q 87

Use the information in the table on international long-distance calling card rates to answer Exercises 30-34. Round answers to the nearest whole minute when necessary.
How many $20 cards would you have to buy to make six hours' worth of calls to a cell phone in India

Free

Essay

Q 88Q 88

Find the unknown number in each proportion. Round answers to the nearest hundredth, if necessary.

Free

Essay

Q 89Q 89

Use the information in the table on international long-distance calling card rates to answer Exercises 30-34. Round answers to the nearest whole minute when necessary.
What is the ratio of minutes you can call Mexico for $20 to minutes you can call Canada for $20

Free

Essay

Q 90Q 90

Find the unknown number in each proportion. Round answers to the nearest hundredth, if necessary.

Free

Essay

Q 91Q 91

Use the information in the table on international long-distance calling card rates to answer Exercises 30-34. Round answers to the nearest whole minute when necessary.
You have already made a 95-minute call to the Philippines. With the amount left on one $20 phone card, how long a call could you make to Afghanistan

Free

Essay

Q 92Q 92

Find the unknown number in each proportion. Round answers to the nearest hundredth, if necessary.

Free

Essay

Q 93Q 93

Find the unknown number in each proportion. Round answers to the nearest hundredth, if necessary.

Free

Essay

Q 94Q 94

Set up and solve a proportion for each application problem.
The ratio of cats to dogs at the animal shelter is 3 to 5. If there are 45 dogs, how many cats are there

Free

Essay

Q 95Q 95

Set up and solve a proportion for each application problem.
Danielle had 8 hits in 28 times at bat during last week's games. If she continues to hit at the same rate, how many hits will she gets in 161 times at bat

Free

Essay

Q 96Q 96

Set up and solve a proportion for each application problem.
If 3.5 pounds of ground beef cost $9.77, what will 5.6 pounds cost Round to the nearest cent.

Free

Essay

Q 97Q 97

Set up and solve a proportion for each application problem.
About 4 out of 10 students are expected to vote in campus elections. There are 8247 students. How many are expected to vote Round to the nearest whole number.

Free

Essay

Q 98Q 98

Set up and solve a proportion for each application problem.
The scale on Brian's model railroad is 1 in. to 16 ft. One of the scale model boxcars is 4.25 in. long. What is the length of a real boxcar in feet

Free

Essay

Q 99Q 99

Set up and solve a proportion for each application problem.
Marvette makes necklaces to sell at a local gift shop. She made 2 dozen necklaces in 16 hours. How long will it take her to make 40 necklaces

Free

Essay

Q 100Q 100

Set up and solve a proportion for each application problem.
A 180-pound person burns 284 calories playing basketball for 25 minutes. At this rate, how many calories would the person burn in 45 minutes, to the nearest whole number ( Source: Wellness Encyclopedia. )

Free

Essay

Q 101Q 101

Find the unknown number in each proportion. Round answers to the nearest hundredth, if necessary.
Set up and solve a proportion for each application problem.
In the hospital pharmacy, Michiko sees that a medicine is to be given at the rate of 3.5 milligrams for every 50 pounds of body weight. How much medicine should be given to a patient who weighs 210 pounds

Free

Essay

Q 102Q 102

Find the unknown number in each proportion. Round answers to the nearest hundredth, if necessary.

Free

Essay

Q 103Q 103

Find the unknown number in each proportion. Round answers to the nearest hundredth, if necessary.

Free

Essay

Q 104Q 104

Find the unknown number in each proportion. Round answers to the nearest hundredth, if necessary.

Free

Essay

Q 105Q 105

Find the unknown number in each proportion. Round answers to the nearest hundredth, if necessary.

Free

Essay

Q 106Q 106

Find the unknown number in each proportion. Round answers to the nearest hundredth, if necessary.

Free

Essay

Q 107Q 107

Find the unknown number in each proportion. Round answers to the nearest hundredth, if necessary.

Free

True False

Q 108Q 108

Find cross products to decide whether each proportion is true or false. Show the cross products and then circle true or false.

Free

True False

Q 109Q 109

Find cross products to decide whether each proportion is true or false. Show the cross products and then circle true or false.

Free

True False

Q 110Q 110

Find cross products to decide whether each proportion is true or false. Show the cross products and then circle true or false.

Free

Essay

Q 111Q 111

Write each ratio as a fraction in lowest terms. Change to the same units when necessary.
4 dollars to 10 quarters

Free

Essay

Free

Essay

Q 113Q 113

Write each ratio as a fraction in lowest terms. Change to the same units when necessary.
10 yd to 8 ft

Free

Essay

Q 114Q 114

Write each ratio as a fraction in lowest terms. Change to the same units when necessary.
$3.60 to $0.90

Free

Essay

Q 115Q 115

Write each ratio as a fraction in lowest terms. Change to the same units when necessary.
12 eggs to 15 eggs

Free

Essay

Q 116Q 116

Write each ratio as a fraction in lowest terms. Change to the same units when necessary.
37 meters to 7 meters

Free

Essay

Q 117Q 117

Write each ratio as a fraction in lowest terms. Change to the same units when necessary.
3 pints to 4 quarts

Free

Essay

Q 118Q 118

Write each ratio as a fraction in lowest terms. Change to the same units when necessary.
15 minutes to 3 hours

Free

Essay

Free

Essay

Q 120Q 120

Write each ratio as a fraction in lowest terms. Change to the same units when necessary.
Nearly 7 out of 8 fans buy something to drink at rock concerts. How many of the 28,500 fans at today's concert would be expected to buy a beverage Round to the nearest hundred fans.

Free

Essay

Q 121Q 121

Write each ratio as a fraction in lowest terms. Change to the same units when necessary.
Emily spent $150 on car repairs and $400 on car insurance. What is the ratio of the amount spent on insurance to the amount spent on repairs

Free

Essay

Q 122Q 122

Write each ratio as a fraction in lowest terms. Change to the same units when necessary.
Antonio is choosing among three packages of plastic wrap. Is the best buy 25 ft for $0.78; 75 ft for $1.99; or 100 ft for $2.59 He has a coupon for 50¢ off either of the larger two packages.

Free

Essay

Q 123Q 123

Write each ratio as a fraction in lowest terms. Change to the same units when necessary.
On this scale drawing of a backyard patio, 0.5 in. represents 6 ft. If the patio measures 1.75 in. Long and 1.25 in. wide on the drawing, what will be the actual length and width of the patio when it is built

Free

Essay

Q 124Q 124

Write each ratio as a fraction in lowest terms. Change to the same units when necessary.
A lawn mower uses 0.8 gallon of gas every 3 hours. How long can the mower run on 2 gallons of gas

Free

Essay

Q 125Q 125

Write each ratio as a fraction in lowest terms. Change to the same units when necessary.
An antibiotic is given at the rate of 1 teaspoons for every 24 pounds of body weight. How much should be given to an infant who weighs 8 pounds

Free

Essay

Q 126Q 126

Write each ratio as a fraction in lowest terms. Change to the same units when necessary.
Charles made 251 points during 169 minutes of playing time last year. At that same rate, how many points would you expect him to make if he plays 14 minutes in tonight's game Round to the nearest whole number.

Free

Essay

Q 127Q 127

Write each ratio as a fraction in lowest terms. Change to the same units when necessary.
Refer to Exercise. Explain each step you took in solving the problem. Be sure to tell how you decided which way to set up the proportion and how you checked your answer.
Exercise.
An antibiotic is given at the rate of 1 teaspoons for every 24 pounds of body weight. How much should be given to an infant who weighs 8 pounds

Free

Essay

Q 128Q 128

Write each ratio as a fraction in lowest terms. Change to the same units when necessary.
A vitamin supplement for cats is given at the rate of 1000 milligrams for a 5-pound cat. ( Source: St. Jon Pet Care Products.)
How much should be given to a 7-pound cat
How much should be given to an 8-ounce kitten

Free

Essay

Q 129Q 129

What is a ratio Write an explanation. Then make up an example of a ratio that is different from the ones in the textbook.

Free

Essay

Free

Essay

Q 131Q 131

To rewrite the ratio in lowest terms, divide both the numerator and the denominator by _______ The ratio in lowest terms is_________.

Free

Essay

Q 132Q 132

To rewrite the ratio in lowest terms, divide both the numerator and the denominator by_______________. The ratio in lowest terms is___________.

Free

Essay

Free

Essay

Free

Essay

Free

Essay

Free

Essay

Q 137Q 137

Write each ratio as a fraction in lowest terms. See Examples 1 and 2.
30 minutes to 90 minutes

Free

Essay

Q 138Q 138

Write each ratio as a fraction in lowest terms. See Examples 1 and 2.
9 pounds to 36 pounds

Free

Essay

Q 139Q 139

Write each ratio as a fraction in lowest terms. See Examples 1 and 2.
80 miles to 50 miles

Free

Essay

Q 140Q 140

Write each ratio as a fraction in lowest terms. See Examples 1 and 2.
300 people to 450 people

Free

Essay

Free

Essay

Q 142Q 142

Write each ratio as a fraction in lowest terms. See Examples 1 and 2.
45 books to 35 books

Free

Essay

Q 143Q 143

Write each ratio as a ratio of whole numbers in lowest terms. See Examples 3 and 4.
$4.50 to $3.50

Free

Essay

Q 144Q 144

Write each ratio as a ratio of whole numbers in lowest terms. See Examples 3 and 4.
+0.08 to +0.06

Free

Essay

Free

Essay

Free

Essay

Free

Essay

Free

Essay

Q 149Q 149

When writing the ratio of 20 ounces to 3 pounds as a fraction in lowest terms, would it be easier to use ounces or pounds __________ Explain why.

Free

Essay

Q 150Q 150

When writing the ratio of 4 days to 36 hours as a fraction in lowest terms,would it be easier to use days or hours _________ Explain why.

Free

Essay

Q 151Q 151

Write each ratio as a fraction in lowest terms. For help, use the table of measurement relationships in this section. See Example 5.
Write each ratio as a fraction in lowest terms. For help, use the table of measurement relationships in this section. See Example 5.
4 ft to 30 in. Hint: First, convert 4 ft to inches.

Free

Essay

Q 152Q 152

Write each ratio as a fraction in lowest terms. For help, use the table of measurement relationships in this section. See Example 5.
8 ft to 4 yd Hint: First, convert 4 yd to feet.

Free

Essay

Q 153Q 153

Write each ratio as a fraction in lowest terms. For help, use the table of measurement relationships in this section. See Example 5.
5 minutes to 1 hour

Free

Essay

Q 154Q 154

Write each ratio as a fraction in lowest terms. For help, use the table of measurement relationships in this section. See Example 5.
8 quarts to 5 pints

Free

Essay

Q 155Q 155

Write each ratio as a fraction in lowest terms. For help, use the table of measurement relationships in this section. See Example 5.
15 hours to 2 days

Free

Essay

Q 156Q 156

Write each ratio as a fraction in lowest terms. For help, use the table of measurement relationships in this section. See Example 5.
3 pounds to 6 ounces

Free

Essay

Q 157Q 157

Write each ratio as a fraction in lowest terms. For help, use the table of measurement relationships in this section. See Example 5.
5 gallons to 5 quarts

Free

Essay

Q 158Q 158

Write each ratio as a fraction in lowest terms. For help, use the table of measurement relationships in this section. See Example 5.
3 cups to 3 pints

Free

Essay

Q 159Q 159

The table shows the number of greeting cards sold in the United States for various occasions. Use the information to answer Exercises 31-36. Write each ratio as a fraction in lowest terms.
Find the ratio of Thanksgiving cards to graduation cards.

Free

Essay

Q 160Q 160

The table shows the number of greeting cards sold in the United States for various occasions. Use the information to answer Exercises 31-36. Write each ratio as a fraction in lowest terms.
Find the ratio of Halloween cards to Mother's Day cards.

Free

Essay

Q 161Q 161

The table shows the number of greeting cards sold in the United States for various occasions. Use the information to answer Exercises 31-36. Write each ratio as a fraction in lowest terms.
Find the ratio of Valentine's Day cards to Thanksgiving cards.

Free

Essay

Q 162Q 162

The table shows the number of greeting cards sold in the United States for various occasions. Use the information to answer Exercises 31-36. Write each ratio as a fraction in lowest terms.
Find the ratio of Mother's Day cards to Father's Day cards.

Free

Essay

Q 163Q 163

The table shows the number of greeting cards sold in the United States for various occasions. Use the information to answer Exercises 31-36. Write each ratio as a fraction in lowest terms.
Explain how you might use the information in the table if you owned a shop selling gifts and greeting cards.

Free

Essay

Q 164Q 164

The table shows the number of greeting cards sold in the United States for various occasions. Use the information to answer Exercises 31-36. Write each ratio as a fraction in lowest terms.
Why is the ratio of Valentine's Day cards to graduation cards Give two possible reasons

Free

Essay

Q 165Q 165

The bar graph shows worldwide sales of the most popular songs of all time. Use the graph to complete Exercises 37-40. Write each ratio as a fraction in lowest terms.
Write a ratio that compares the top-selling song to the second best seller, and a ratio that compares the top-selling song to the third best seller.

Free

Essay

Q 166Q 166

The bar graph shows worldwide sales of the most popular songs of all time. Use the graph to complete Exercises 37-40. Write each ratio as a fraction in lowest terms.
Write two ratios that compare sales of Elvis Presley's song with sales of the songs just ahead and just behind it in the graph.

Free

Essay

Q 167Q 167

The bar graph shows worldwide sales of the most popular songs of all time. Use the graph to complete Exercises 37-40. Write each ratio as a fraction in lowest terms.
Sales of which two songs give a ratio of There may be more than one correct answer.

Free

Essay

Q 168Q 168

The bar graph shows worldwide sales of the most popular songs of all time. Use the graph to complete Exercises 37-40. Write each ratio as a fraction in lowest terms.
Sales of which two songs give a ratio of There may be more than one correct answer.

Free

Essay

Q 169Q 169

For each figure, find the ratio of the length of the longest side to the length of the shortest side. Write each ratio as a fraction in lowest terms.

Free

Essay

Q 170Q 170

For each figure, find the ratio of the length of the longest side to the length of the shortest side. Write each ratio as a fraction in lowest terms.

Free

Essay

Q 171Q 171

For each figure, find the ratio of the length of the longest side to the length of the shortest side. Write each ratio as a fraction in lowest terms.

Free

Essay

Q 172Q 172For each figure, find the ratio of the length of the longest side to the length of the shortest side. Write each ratio as a fraction in lowest terms.

Free

Essay

Q 173Q 173For each figure, find the ratio of the length of the longest side to the length of the shortest side. Write each ratio as a fraction in lowest terms.

Free

Essay

Q 174Q 174For each figure, find the ratio of the length of the longest side to the length of the shortest side. Write each ratio as a fraction in lowest terms.

Free

Essay

Q 175Q 175

Write each ratio as a fraction in lowest terms.
The price of automobile engine oil has gone from $10 to +12.50 for the 5 quarts needed for an oil change. Find the ratio of the increase in price to the original price.

Free

Essay

Q 176Q 176

Write each ratio as a fraction in lowest terms.
The price that a pharmacy pays for an antibiotic decreased from +8.80 to +5.60 for 10 tablets. Find the ratio of the decrease in price to the original price.

Free

Essay

Q 177Q 177

Write each ratio as a fraction in lowest terms.
The first time a movie was made in Minnesota, the cast and crew spent days filming winter scenes. The next year, another movie was filmed in weeks. Find the ratio of the first movie's filming time to the second movie's time. Compare in weeks.

Free

Essay

Q 178Q 178

Write each ratio as a fraction in lowest terms.
The percheron, a large draft horse, measures about ft at the shoulder. The prehistoric ancestor of the horse measured only in. at the shoulder. Find the ratio of the percheron's height to its prehistoric ancestor's height. Compare in inches. ( Source: Eyewitness Books: Horse.)

Free

Essay

Q 179Q 179

Use your knowledge of ratios to work Exercises 51 54 in order.
In this painting, what is the ratio of the length of the longest side to the length of the shortest side What other measurements could the painting have and still maintain the same ratio

Free

Essay

Q 180Q 180

Use your knowledge of ratios to work Exercises 51 54 in order.
The ratio of my son's age to my daughter's age is 4 to 5. One possibility is that my son is 4 years old and my daughter is 5 years old. Find six other possibilities that fit the 4 to 5 ratio.

Free

Essay

Q 181Q 181

Use your knowledge of ratios to work Exercises 51 54 in order.
Amelia said that the ratio of her age to her mother's age is 5 to 3. Is this possible Explain your answer.

Free

Essay

Q 182Q 182

Use your knowledge of ratios to work Exercises 51 54 in order.
Would you prefer that the ratio of your income to your friend's income be 1 to 3 or 3 to 1 Explain your answers.

Free

Essay

Free

Essay

Free

Essay

Free

Essay

Free

Essay

Free

Essay

Free

Essay

Q 189Q 189

Find each unit rate. See Example 2.
To find a unit rate, do you add, subtract, multiply, or divide ______________ Show the correct set-up to find this unit rate: $5.85 for 3 boxes.

Free

Essay

Q 190Q 190

Find each unit rate. See Example 2.
Circle the correct answer. When finding this unit rate, 15 hospital rooms for 3 nurses, the final answer will be:
5 to 1 5 rooms for 1 nurse 5 nurses for 1 room

Free

Essay

Free

Essay

Free

Essay

Free

Not Answered

There is no answer for this question

Free

Essay

Q 195Q 195

Earl kept the following record of the gas he bought for his car. For each entry, find the number of miles he traveled and the unit rate. Round your answers to the nearest tenth.

Free

Essay

Q 196Q 196

Earl kept the following record of the gas he bought for his car. For each entry, find the number of miles he traveled and the unit rate. Round your answers to the nearest tenth.

Free

Essay

Q 197Q 197

Earl kept the following record of the gas he bought for his car. For each entry, find the number of miles he traveled and the unit rate. Round your answers to the nearest tenth.

Free

Essay

Q 198Q 198Earl kept the following record of the gas he bought for his car. For each entry, find the number of miles he traveled and the unit rate. Round your answers to the nearest tenth.

Free

Essay

Q 199Q 199

Find the best buy (based on the cost per unit) for each item. Round to the nearest thousandth, if necessary. See Example 3. (Source: Cub Foods, Target, Rainbow Foods.)
Black pepper

Free

Essay

Q 200Q 200

Find the best buy (based on the cost per unit) for each item. Round to the nearest thousandth, if necessary. See Example 3. (Source: Cub Foods, Target, Rainbow Foods.)
Shampoo

Free

Essay

Q 201Q 201

Find the best buy (based on the cost per unit) for each item. Round to the nearest thousandth, if necessary. See Example 3. (Source: Cub Foods, Target, Rainbow Foods.)
Cereal
12 ounces for +2.49
14 ounces for $2.89
18 ounces for $3.96

Free

Essay

Q 202Q 202

Find the best buy (based on the cost per unit) for each item. Round to the nearest thousandth, if necessary. See Example 3. (Source: Cub Foods, Target, Rainbow Foods.)
Soup (same size cans)
2 cans for +2.18
3 cans for +3.57
5 cans for +5.29

Free

Essay

Q 203Q 203

Find the best buy (based on the cost per unit) for each item. Round to the nearest thousandth, if necessary. See Example 3. (Source: Cub Foods, Target, Rainbow Foods.)
Chunky peanut butter
12 ounces for +1.29
18 ounces for +1.79
28 ounces for +3.39
40 ounces for +4.39

Free

Essay

Q 204Q 204

Find the best buy (based on the cost per unit) for each item. Round to the nearest thousandth, if necessary. See Example 3. (Source: Cub Foods, Target, Rainbow Foods.)
Baked beans
8 ounces for +0.59
16 ounces for +0.99
21 ounces for +1.29
28 ounces for +1.89

Free

Essay

Q 205Q 205

Find the best buy (based on the cost per unit) for each item. Round to the nearest thousandth, if necessary. See Example 3. (Source: Cub Foods, Target, Rainbow Foods.)
Suppose you are choosing between two brands of chicken noodle soup. Brand A is +0.88 per can and Brand B is +0.98 per can. The cans are the same size but Brand B has more chunks of chicken in it. Which soup is the better buy Explain your choice.

Free

Essay

Q 206Q 206

Find the best buy (based on the cost per unit) for each item. Round to the nearest thousandth, if necessary. See Example 3. (Source: Cub Foods, Target, Rainbow Foods.)
A small bag of potatoes costs +0.19 per pound. A large bag costs +0.15 per pound. But there are only two people in your family, so half the large bag would probably rot before you used it up. Which bag is the better buy Explain.

Free

Essay

Q 207Q 207

Solve each application problem. See Examples 2 4.
Makesha lost 10.5 pounds in six weeks. What was her rate of loss in pounds per week

Free

Essay

Q 208Q 208

Solve each application problem. See Examples 2 4.
Enrique's taco recipe uses three pounds of meat to feed 10 people. Give the rate in pounds per person.

Free

Essay

Q 209Q 209

Solve each application problem. See Examples 2 4.
Russ works 7 hours to earn $85.82. What is his pay rate per hour

Free

Essay

Q 210Q 210

Solve each application problem. See Examples 2 4.
Find the cost of 1 gallon of Hawaiian Punch beverage if 18 gallons for a graduation party cost $55.62.

Free

Essay

Q 211Q 211

The table lists information about three long-distance calling cards. The connection fee is charged each time you make a call, no matter how long the call lasts. Use the table to answer Exercises 29 32. Round answers to the nearest thousandth when necessary.
(a) Find the actual total cost, including the connection charge, for a five-minute call using each card.
(b) Find the cost per minute for this call using each card and select the best buy.

Free

Essay

Q 212Q 212

The table lists information about three long-distance calling cards. The connection fee is charged each time you make a call, no matter how long the call lasts. Use the table to answer Exercises 29 32. Round answers to the nearest thousandth when necessary.
(a) Find the actual total cost, including the connection charge, for a 90-minute call using each card.
(b) Find the cost per minute for this call using each card and select the best buy.

Free

Essay

Q 213Q 213

The table lists information about three long-distance calling cards. The connection fee is charged each time you make a call, no matter how long the call lasts. Use the table to answer Exercises 29 32. Round answers to the nearest thousandth when necessary.
Find the actual total cost and the per minute cost for a 30-minute call using each card. What do you see when you compare the unit rates for this call

Free

Essay

Q 214Q 214

The table lists information about three long-distance calling cards. The connection fee is charged each time you make a call, no matter how long the call lasts. Use the table to answer Exercises 29 32. Round answers to the nearest thousandth when necessary.
All the cards round calls up to the next full minute.
(a) Suppose you call the wrong number. How much would you pay for this 40- second call on each card
(b) How much would you save on this call by using the USA Card instead of Most Minutes

Free

Essay

Free

Essay

Free

Essay

Q 217Q 217

Three brands of cornflakes are available. Brand G is priced at $2.39 for 10 ounces. Brand K is $3.99 for 20.3 ounces and Brand P is $3.39 for 16.5 ounces. You have a coupon for 50¢ off Brand P and a coupon for 60¢ off Brand G. Which cereal is the best buy based on cost per unit

Free

Essay

Q 218Q 218

Two brands of facial tissue are available. Brand K is priced at $5 for three boxes of 175 tissues each. Brand S is priced at $1.29 per box of 125 tissues. You have a coupon for 20¢ off one box of Brand S and a coupon for 45¢ off one box of Brand K. How can you get the best buy on one box of tissue

Free

Essay

Q 219Q 219

On the first page of this chapter, we said that unit rates can help you get the best deal on cell phone service. Use the information in the table to work Exercises 37 41 in order. Round all money answers to the nearest cent.
Find the cost per minute for each plan. Round your answers to the nearest cent and write them in the table above. Which plan is the better buy based on cost per minute

Free

Essay

Q 220Q 220

On the first page of this chapter, we said that unit rates can help you get the best deal on cell phone service. Use the information in the table to work Exercises 37 41 in order. Round all money answers to the nearest cent.
In a 30-day month, what is the average number of minutes you can use your phone each day on:
(a) Plan A
(b) Plan B

Free

Essay

Q 221Q 221

On the first page of this chapter, we said that unit rates can help you get the best deal on cell phone service. Use the information in the table to work Exercises 37 41 in order. Round all money answers to the nearest cent.
Suppose you are on Plan A. Last month you used 2 more minutes each day than the average number of minutes you calculated in Exercise. Find the new cost per minute for last month. (Assume 30 days in last month.)
Exercise.
In a 30-day month, what is the average number of minutes you can use your phone each day on:
(a) Plan A
(b) Plan B

Free

Essay

Q 222Q 222

On the first page of this chapter, we said that unit rates can help you get the best deal on cell phone service. Use the information in the table to work Exercises 37 41 in order. Round all money answers to the nearest cent.
Suppose you are on Plan B. Last month you used 3 more minutes each day than the average number of minutes you calculated in Exercise. Find the new cost per minute for last month. (Assume 30 days in last month.)
Exercise.
In a 30-day month, what is the average number of minutes you can use your phone each day on:
(a) Plan A
(b) Plan B

Free

Essay

Q 223Q 223

On the first page of this chapter, we said that unit rates can help you get the best deal on cell phone service. Use the information in the table to work Exercises 37 41 in order. Round all money answers to the nearest cent.
The company also offers Plan C, with unlimited minutes for $69.95 per month. If you had Plan C, find the cost per minute for the situations described in Exercises 1 and 2.
Exercise 1 Suppose you are on Plan A. Last month you used 2 more minutes each day than the average number of minutes you calculated in Exercise 3. Find the new cost per minute for last month. (Assume 30 days in last month.)
Exercise 2 Suppose you are on Plan B. Last month you used 3 more minutes each day than the average number of minutes you calculated in Exercise 3. Find the new cost per minute for last month. (Assume 30 days in last month.)
Exercise 3 In a 30-day month, what is the average number of minutes you can use your phone each day on:
(a) Plan A
(b) Plan B

Free

Essay

Free

Essay

Free

Essay

Q 226Q 226

Write each proportion. See Example 1.
200 adults is to 450 children as 4 adults is to 9 children.

Free

Essay

Q 227Q 227

Write each proportion. See Example 1.
150 trees is to 1 acre as 1500 trees is to 10 acres.

Free

Essay

Free

Essay

Free

True False

Q 230Q 230

Determine whether each proportion is true or false by writing the ratios in lowest terms. Show the simplified ratios and then write true or false. See Example 2.

Free

True False

Q 231Q 231

Determine whether each proportion is true or false by writing the ratios in lowest terms. Show the simplified ratios and then write true or false. See Example 2.

Free

True False

Q 232Q 232

Determine whether each proportion is true or false by writing the ratios in lowest terms. Show the simplified ratios and then write true or false. See Example 2.

Free

True False

Q 233Q 233Determine whether each proportion is true or false by writing the ratios in lowest terms. Show the simplified ratios and then write true or false. See Example 2.

Free

True False

Q 234Q 234Determine whether each proportion is true or false by writing the ratios in lowest terms. Show the simplified ratios and then write true or false. See Example 2.

Free

True False

Q 235Q 235Determine whether each proportion is true or false by writing the ratios in lowest terms. Show the simplified ratios and then write true or false. See Example 2.

Free

True False

Q 236Q 236Determine whether each proportion is true or false by writing the ratios in lowest terms. Show the simplified ratios and then write true or false. See Example 2.

Free

True False

Q 237Q 237Determine whether each proportion is true or false by writing the ratios in lowest terms. Show the simplified ratios and then write true or false. See Example 2.

Free

True False

Q 238Q 238Determine whether each proportion is true or false by writing the ratios in lowest terms. Show the simplified ratios and then write true or false. See Example 2.

Free

True False

Q 239Q 239Determine whether each proportion is true or false by writing the ratios in lowest terms. Show the simplified ratios and then write true or false. See Example 2.

Free

True False

Q 240Q 240Determine whether each proportion is true or false by writing the ratios in lowest terms. Show the simplified ratios and then write true or false. See Example 2.

Free

True False

Q 241Q 241Determine whether each proportion is true or false by writing the ratios in lowest terms. Show the simplified ratios and then write true or false. See Example 2.

Free

Essay

Q 242Q 242

What is a proportion Explain. Then draw arrows on the proportion below and show what numbers to multiply to find the cross products.

Free

True False

Q 243Q 243

Explain how to tell if a proportion is true or false after you have found the cross products.

Free

True False

Q 244Q 244

Use cross products to determine whether each proportion is true or false. Show the cross products and then circle true or false. See Example 3.

Free

True False

Q 245Q 245

Use cross products to determine whether each proportion is true or false. Show the cross products and then circle true or false. See Example 3.

Free

True False

Q 246Q 246

Use cross products to determine whether each proportion is true or false. Show the cross products and then circle true or false. See Example 3.

Free

True False

Q 247Q 247Use cross products to determine whether each proportion is true or false. Show the cross products and then circle true or false. See Example 3.

Free

True False

Q 248Q 248Use cross products to determine whether each proportion is true or false. Show the cross products and then circle true or false. See Example 3.

Free

True False

Q 249Q 249Use cross products to determine whether each proportion is true or false. Show the cross products and then circle true or false. See Example 3.

Free

True False

Q 250Q 250Use cross products to determine whether each proportion is true or false. Show the cross products and then circle true or false. See Example 3.

Free

True False

Q 251Q 251Use cross products to determine whether each proportion is true or false. Show the cross products and then circle true or false. See Example 3.

Free

True False

Q 252Q 252Use cross products to determine whether each proportion is true or false. Show the cross products and then circle true or false. See Example 3.

Free

True False

Q 253Q 253Use cross products to determine whether each proportion is true or false. Show the cross products and then circle true or false. See Example 3.

Free

True False

Q 254Q 254Use cross products to determine whether each proportion is true or false. Show the cross products and then circle true or false. See Example 3.

Free

True False

Q 255Q 255Use cross products to determine whether each proportion is true or false. Show the cross products and then circle true or false. See Example 3.

Free

True False

Q 256Q 256Use cross products to determine whether each proportion is true or false. Show the cross products and then circle true or false. See Example 3.

Free

True False

Q 257Q 257Use cross products to determine whether each proportion is true or false. Show the cross products and then circle true or false. See Example 3.

Free

True False

Q 258Q 258Use cross products to determine whether each proportion is true or false. Show the cross products and then circle true or false. See Example 3.

Free

True False

Q 259Q 259Use cross products to determine whether each proportion is true or false. Show the cross products and then circle true or false. See Example 3.

Free

True False

Q 260Q 260Use cross products to determine whether each proportion is true or false. Show the cross products and then circle true or false. See Example 3.

Free

True False

Q 261Q 261Use cross products to determine whether each proportion is true or false. Show the cross products and then circle true or false. See Example 3.

Free

Essay

Q 262Q 262

Suppose Joe Mauer of the Minnesota Twins had 68 hits in 200 times at bat and Joey Votto of the Cincinnati Reds was at bat 450 times and got 153 hits. Paula is trying to convince Jenny that the two men hit equally well. Show how you could use a proportion and cross products to see whether Paula is correct.

Free

True False

Q 263Q 263

Jay worked 3.5 hours and packed 91 cartons. Craig packed 126 cartons in 5.25 hours. To see whether the men worked equally fast, Barry set up this proportion:
Explain what is wrong with Barry's proportion and write a correct one. Is the correct proportion true or false

Free

Essay

Free

Essay

Q 265Q 265

In , the cross products are 7 • x and 50. What is the next step when finding the unknown number Show how to do this step.

Free

Essay

Q 266Q 266

Find the unknown number in each proportion. Round your answers to hundredths, if necessary. Check your answers by finding the cross products. See Examples 1 and 2.

Free

Essay

Q 267Q 267

Find the unknown number in each proportion. Round your answers to hundredths, if necessary. Check your answers by finding the cross products. See Examples 1 and 2.

Free

Essay

Q 268Q 268

Find the unknown number in each proportion. Round your answers to hundredths, if necessary. Check your answers by finding the cross products. See Examples 1 and 2.

Free

Essay

Q 269Q 269Find the unknown number in each proportion. Round your answers to hundredths, if necessary. Check your answers by finding the cross products. See Examples 1 and 2.

Free

Essay

Q 270Q 270Find the unknown number in each proportion. Round your answers to hundredths, if necessary. Check your answers by finding the cross products. See Examples 1 and 2.

Free

Essay

Q 271Q 271Find the unknown number in each proportion. Round your answers to hundredths, if necessary. Check your answers by finding the cross products. See Examples 1 and 2.

Free

Essay

Q 272Q 272Find the unknown number in each proportion. Round your answers to hundredths, if necessary. Check your answers by finding the cross products. See Examples 1 and 2.

Free

Essay

Q 273Q 273Find the unknown number in each proportion. Round your answers to hundredths, if necessary. Check your answers by finding the cross products. See Examples 1 and 2.

Free

Essay

Q 274Q 274Find the unknown number in each proportion. Round your answers to hundredths, if necessary. Check your answers by finding the cross products. See Examples 1 and 2.

Free

Essay

Q 275Q 275Find the unknown number in each proportion. Round your answers to hundredths, if necessary. Check your answers by finding the cross products. See Examples 1 and 2.

Free

Essay

Q 276Q 276Find the unknown number in each proportion. Round your answers to hundredths, if necessary. Check your answers by finding the cross products. See Examples 1 and 2.

Free

Essay

Q 277Q 277Find the unknown number in each proportion. Round your answers to hundredths, if necessary. Check your answers by finding the cross products. See Examples 1 and 2.

Free

Essay

Q 278Q 278Find the unknown number in each proportion. Round your answers to hundredths, if necessary. Check your answers by finding the cross products. See Examples 1 and 2.

Free

Essay

Q 279Q 279Find the unknown number in each proportion. Round your answers to hundredths, if necessary. Check your answers by finding the cross products. See Examples 1 and 2.

Free

Essay

Q 280Q 280Find the unknown number in each proportion. Round your answers to hundredths, if necessary. Check your answers by finding the cross products. See Examples 1 and 2.

Free

Essay

Q 281Q 281Find the unknown number in each proportion. Round your answers to hundredths, if necessary. Check your answers by finding the cross products. See Examples 1 and 2.

Free

Essay

Q 282Q 282Find the unknown number in each proportion. Round your answers to hundredths, if necessary. Check your answers by finding the cross products. See Examples 1 and 2.

Free

Essay

Q 283Q 283Find the unknown number in each proportion. Round your answers to hundredths, if necessary. Check your answers by finding the cross products. See Examples 1 and 2.

Free

Essay

Q 284Q 284

Find the unknown number in each proportion. Write your answers as whole or mixed numbers when possible. See Example 2.

Free

Essay

Q 285Q 285

Find the unknown number in each proportion. Write your answers as whole or mixed numbers when possible. See Example 2.

Free

Essay

Q 286Q 286

Find the unknown number in each proportion. Write your answers as whole or mixed numbers when possible. See Example 2.

Free

Essay

Q 287Q 287Find the unknown number in each proportion. Write your answers as whole or mixed numbers when possible. See Example 2.

Free

Essay

Q 288Q 288

Solve each proportion two different ways. First change all the numbers to decimal form and solve. Then change all the numbers to fraction form and solve; write your answers in lowest terms.

Free

Essay

Q 289Q 289

Solve each proportion two different ways. First change all the numbers to decimal form and solve. Then change all the numbers to fraction form and solve; write your answers in lowest terms.

Free

Essay

Q 290Q 290

Solve each proportion two different ways. First change all the numbers to decimal form and solve. Then change all the numbers to fraction form and solve; write your answers in lowest terms.

Free

Essay

Q 291Q 291Solve each proportion two different ways. First change all the numbers to decimal form and solve. Then change all the numbers to fraction form and solve; write your answers in lowest terms.

Free

Essay

Q 292Q 292

Work Exercises 29 30 in order. First prove that the proportions are not true. Then create four true proportions for each exercise by changing one number at a time.

Free

Essay

Q 293Q 293

Work Exercises 29 30 in order. First prove that the proportions are not true. Then create four true proportions for each exercise by changing one number at a time.

Free

Essay

Q 294Q 294

Use the bar graph of the countries with the most websites to complete Exercises 1-4. Write each ratio as a fraction in lowest terms.
Write the ratio of the number of websites in Japan to the number of websites in Germany.

Free

Essay

Q 295Q 295

Use the bar graph of the countries with the most websites to complete Exercises 1-4. Write each ratio as a fraction in lowest terms.
What is the ratio of the number of websites in Brazil to the number of websites in Italy

Free

Essay

Q 296Q 296

Use the bar graph of the countries with the most websites to complete Exercises 1-4. Write each ratio as a fraction in lowest terms.
Find the ratio of the combined number of websites in Italy and Germany compared to the number of websites in Japan.

Free

Essay

Q 297Q 297

Use the bar graph of the countries with the most websites to complete Exercises 1-4. Write each ratio as a fraction in lowest terms.
Write the ratio of the number of websites in the USA compared to the total number of websites in all the other countries shown in the graph.

Free

Essay

Q 298Q 298

The bar graph shows the number of Americans who play various instruments. Use the graph to complete Exercises 5 and 6. Write each ratio as a fraction in lowest terms.
Write five ratios that compare the least popular instrument to each of the other instruments.

Free

Essay

Q 299Q 299

The bar graph shows the number of Americans who play various instruments. Use the graph to complete Exercises 5 and 6. Write each ratio as a fraction in lowest terms.
Which two instruments give each of these ratios
There may be more than one correct answer.

Free

Essay

Q 300Q 300

The table lists data on the top three individual scoring NBA basketball games of all time. Use the data to answer Exercises 7 and 8. Round answers to the nearest tenth.
What was Wilt Chamberlain's scoring rate in points per minute and in minutes per point

Free

Essay

Q 301Q 301

The table lists data on the top three individual scoring NBA basketball games of all time. Use the data to answer Exercises 7 and 8. Round answers to the nearest tenth.
Find Kobe Bryant's scoring rate in points per minute and minutes per point.

Free

Essay

Q 302Q 302

Lucinda's paycheck showed gross pay of $652.80 for 40 hours of work and $195.84 for 8 hours of overtime work. Find her regular hourly pay rate and her overtime rate.

Free

Essay

Q 303Q 303

Satellite TV service is being offered to new subscribers at $29.99 per month for 150 channels, $34.99 per month for 210 channels, or $39.99 per month for 225 channels. What is the monthly cost per channel under each plan, to the nearest cent ( Source: DIRECTV advertisement.)

Free

Essay

Q 304Q 304

Find the best buy on gourmet coffee beans. Round to the nearest cent.
11 ounces for +6.79
12 ounces for +7.24
16 ounces for +10.99
( Source: Cub Foods.)

Free

Essay

Q 305Q 305

Which brand of cat food is the best buy You have a coupon for $2 off Brand P, and another for $1 off Brand N.
Brand N is +3.75 for 3.5 pounds.
Brand P is +5.99 for 7 pounds.
Brand R is +10.79 for 18 pounds.

Free

True False

Q 306Q 306Use either the method of writing in lowest terms or the method of finding cross products to decide whether each proportion is true or false. Show your work and then write true or false.

Free

True False

Q 307Q 307Use either the method of writing in lowest terms or the method of finding cross products to decide whether each proportion is true or false. Show your work and then write true or false.

Free

True False

Q 308Q 308Use either the method of writing in lowest terms or the method of finding cross products to decide whether each proportion is true or false. Show your work and then write true or false.

Free

Essay

Q 309Q 309

Solve each proportion to find the unknown number. Round your answers to hundredths when necessary.

Free

Essay

Q 310Q 310

Solve each proportion to find the unknown number. Round your answers to hundredths when necessary.

Free

Essay

Q 311Q 311

Solve each proportion to find the unknown number. Round your answers to hundredths when necessary.

Free

Essay

Q 312Q 312

Solve each proportion to find the unknown number. Round your answers to hundredths when necessary.

Free

Essay

Q 313Q 313

Solve each proportion to find the unknown number. Round your answers to hundredths when necessary.

Free

Essay

Q 314Q 314

Solve each proportion to find the unknown number. Round your answers to hundredths when necessary.

Free

Essay

Q 315Q 315

Solve each proportion to find the unknown number. Round your answers to hundredths when necessary.

Free

Essay

Q 316Q 316

Solve each proportion to find the unknown number. Round your answers to hundredths when necessary.

Free

Essay

Q 317Q 317

Solve each proportion to find the unknown number. Round your answers to hundredths when necessary.

Free

Essay

Q 318Q 318

Complete the proportion for each situation in Exercises 1 and 2. Do not solve the proportion.
When Linda makes potato salad, she uses 6 potatoes and 4 hard-boiled eggs. How many eggs will she need if she uses 12 potatoes Write the rest of the units in the proportion below.

Free

Essay

Q 319Q 319

Complete the proportion for each situation in Exercises 1 and 2. Do not solve the proportion.
A potato chip bag says that 1 serving is 15 chips. Joe ate 70 chips. How many servings did he eat Write the rest of the units in the proportion below.

Free

Essay

Q 320Q 320

Set up and solve a proportion for each application problem. See Example 1.
Caroline can sketch four cartoon strips in five hours. How long will it take her to sketch 18 strips

Free

Essay

Q 321Q 321

Set up and solve a proportion for each application problem. See Example 1.
The Cosmic Toads recorded eight songs on their first album in 26 hours. At this same rate, how long will it take them to record 14 songs for their second album

Free

Essay

Q 322Q 322

Set up and solve a proportion for each application problem. See Example 1.
Sixty newspapers cost $27. Find the cost of 16 newspapers.

Free

Essay

Q 323Q 323

Set up and solve a proportion for each application problem. See Example 1.
Twenty-two guitar lessons cost $528. Find the cost of 12 lessons.

Free

Essay

Q 324Q 324

Set up and solve a proportion for each application problem. See Example 1.
If three pounds of fescue grass seed cover about 350 square feet of ground, how many pounds are needed for 4900 square feet

Free

Essay

Q 325Q 325

Set up and solve a proportion for each application problem. See Example 1.
Anna earns $1242.08 in 14 days. How much does she earn in 260 days

Free

Essay

Q 326Q 326

Set up and solve a proportion for each application problem. See Example 1.
Tom makes $672.80 in 5 days. How much does he make in 3 days

Free

Essay

Q 327Q 327

Set up and solve a proportion for each application problem. See Example 1.
If 5 ounces of a medicine must be mixed with 8 ounces of water, how many ounces of medicine would be mixed with 20 ounces of water

Free

Essay

Q 328Q 328

Set up and solve a proportion for each application problem. See Example 1.
The bag of rice noodles below makes 7 servings. At that rate, how many ounces of noodles do you need for 12 servings, to the nearest ounce

Free

Essay

Q 329Q 329

Set up and solve a proportion for each application problem. See Example 1.
This can of sweet potatoes is enough for 4 servings. How many ounces are needed for 9 servings, to the nearest ounce

Free

Essay

Q 330Q 330

Set up and solve a proportion for each application problem. See Example 1.
Three quarts of a latex enamel paint will cover about 270 square feet of wall surface. How many quarts will you need to cover 350 square feet of wall surface in your kitchen and 100 square feet of wall surface in your bathroom

Free

Essay

Q 331Q 331

Set up and solve a proportion for each application problem. See Example 1.
One gallon of clear gloss wood finish covers about 550 square feet of surface. If you need to apply three coats of finish to 400 square feet of surface, how many gallons do you need, to the nearest tenth

Free

Essay

Q 332Q 332

Use the floor plan shown to complete Exercises 15-18. On the plan, one inch represents four feet.
What is the actual length and width of the kitchen

Free

Essay

Q 333Q 333

Use the floor plan shown to complete Exercises 15-18. On the plan, one inch represents four feet.
What is the actual length and width of the family room

Free

Essay

Q 334Q 334

Use the floor plan shown to complete Exercises 15-18. On the plan, one inch represents four feet.
What is the actual length and width of the dining area

Free

Essay

Q 335Q 335

Use the floor plan shown to complete Exercises 15-18. On the plan, one inch represents four feet.
What is the actual length and width of the entire floor plan

Free

Essay

Q 336Q 336

The table below lists recommended amounts of food to order for 25 party guests. Use the table to answer Exercises 19 and 20. (Source: Cub Foods.)
How much of each food item should Nathan and Amanda order for a graduation party with 60 guests

Free

Essay

Q 337Q 337

The table below lists recommended amounts of food to order for 25 party guests. Use the table to answer Exercises 19 and 20. (Source: Cub Foods.)
Taisha is having 20 neighbors over for a Fourth of July picnic. How much food should she buy

Free

Essay

Q 338Q 338

CONCEPT CHECK Eight out of 10 students voted to take a fifteen-minute break in the middle of a two-hour class. There are 35 students in the class. How many students voted for the break Carl set up the proportion below. Explain how to tell if Carl's answer is reasonable or not.

Free

Essay

Q 339Q 339

CONCEPT CHECK Many experts recommend 30 minutes of exercise each day. If Vera follows that advice for 60 days, how many minutes of exercise will she get Vera set up the proportion below. Explain how to tell if Vera's answer is reasonable or not.

Free

Essay

Q 340Q 340

Set up a proportion to solve each problem. Check to see whether your answer is reasonable. Then flip one side of your proportion to see what answer you get with an incorrect set-up. Explain why the second answer is unreasonable. See Example 2.
About 7 out of 10 people entering a community college need to take a refresher math course. If there are 2950 entering students, how many will probably need refresher math ( Source: Minneapolis Community and Technical College.)

Free

Essay

Q 341Q 341

Set up a proportion to solve each problem. Check to see whether your answer is reasonable. Then flip one side of your proportion to see what answer you get with an incorrect set-up. Explain why the second answer is unreasonable. See Example 2.
In a survey, only 3 out of 100 people like their eggs poached. At that rate, how many of the 60 customers who ordered eggs at Soon-Won's restaurant this morning asked to have them poached Round to the nearest whole person.

Free

Essay

Q 342Q 342

Set up a proportion to solve each problem. Check to see whether your answer is reasonable. Then flip one side of your proportion to see what answer you get with an incorrect set-up. Explain why the second answer is unreasonable. See Example 2.
About 1 out of 3 people choose vanilla as their favorite ice cream flavor. If 250 people attend an ice cream social, how many would you expect to choose vanilla Round to the nearest whole person.

Free

Essay

Q 343Q 343

Set up a proportion to solve each problem. Check to see whether your answer is reasonable. Then flip one side of your proportion to see what answer you get with an incorrect set-up. Explain why the second answer is unreasonable. See Example 2.
In a test of 200 sewing machines, only one had a defect. At that rate, how many of the 5600 machines shipped from the factory have defects

Free

Essay

Q 344Q 344

Set up a proportion to solve each problem. Check to see whether your answer is reasonable. Then flip one side of your proportion to see what answer you get with an incorrect set-up. Explain why the second answer is unreasonable. See Example 2.
The stock market report says that 5 stocks went up for every 6 stocks that went down. If 750 stocks went down yesterday, how many went up

Free

Essay

Q 345Q 345

Set up a proportion to solve each problem. Check to see whether your answer is reasonable. Then flip one side of your proportion to see what answer you get with an incorrect set-up. Explain why the second answer is unreasonable. See Example 2.
The human body contains 90 pounds of water for every 100 pounds of body weight. How many pounds of water are in a child who weighs 80 pounds

Free

Essay

Q 346Q 346

Set up a proportion to solve each problem. Check to see whether your answer is reasonable. Then flip one side of your proportion to see what answer you get with an incorrect set-up. Explain why the second answer is unreasonable. See Example 2.
The ratio of the length of an airplane wing to its width is 8 to 1. If the length of a wing is 32.5 meters, how wide must it be Round to the nearest hundredth.

Free

Essay

Q 347Q 347

Set up a proportion to solve each problem. Check to see whether your answer is reasonable. Then flip one side of your proportion to see what answer you get with an incorrect set-up. Explain why the second answer is unreasonable. See Example 2.
The Rosebud School District wants a student-to-teacher ratio of 19 to 1. How many teachers are needed for 1850 students Round to the nearest whole number.

Free

Essay

Q 348Q 348

Set up a proportion to solve each problem. Check to see whether your answer is reasonable. Then flip one side of your proportion to see what answer you get with an incorrect set-up. Explain why the second answer is unreasonable. See Example 2.
The number of calories you burn is proportional to your weight. A 150-pound person burns 222 calories during 30 minutes of tennis. How many calories would a 210-pound person burn, to the nearest whole number ( Source: Wellness Encyclopedia. )

Free

Essay

Q 349Q 349

Set up a proportion to solve each problem. Check to see whether your answer is reasonable. Then flip one side of your proportion to see what answer you get with an incorrect set-up. Explain why the second answer is unreasonable. See Example 2.
Refer to Exercise. A 150-pound person burns 189 calories during 45 minutes of grocery shopping. How many calories would a 115-pound person burn, to the nearest whole number ( Source: Wellness Encyclopedia. )
Exercise.
The number of calories you burn is proportional to your weight. A 150-pound person burns 222 calories during 30 minutes of tennis. How many calories would a 210-pound person burn, to the nearest whole number ( Source: Wellness Encyclopedia. )

Free

Essay

Q 350Q 350

Set up a proportion to solve each problem. Check to see whether your answer is reasonable. Then flip one side of your proportion to see what answer you get with an incorrect set-up. Explain why the second answer is unreasonable. See Example 2.
At 3 P.M., Coretta's shadow is 1.05 meters long. Her height is 1.68 meters. At the same time, a tree's shadow is 6.58 meters long. How tall is the tree Round to the nearest hundredth.

Free

Essay

Q 351Q 351

Set up a proportion to solve each problem. Check to see whether your answer is reasonable. Then flip one side of your proportion to see what answer you get with an incorrect set-up. Explain why the second answer is unreasonable. See Example 2.
Refer to Exercise. Later in the day, Coretta's shadow was 2.95 meters long. How long a shadow did the tree have at that time Round to the nearest hundredth.
Exercise.
At 3 P.M., Coretta's shadow is 1.05 meters long. Her height is 1.68 meters. At the same time, a tree's shadow is 6.58 meters long. How tall is the tree Round to the nearest hundredth.

Free

Essay

Q 352Q 352

Set up a proportion to solve each problem. Check to see whether your answer is reasonable. Then flip one side of your proportion to see what answer you get with an incorrect set-up. Explain why the second answer is unreasonable. See Example 2.
Can you set up a proportion to solve this problem Explain why or why not. Jim is 25 years old and weighs 180 pounds. How much will he weigh when he is 50 years old

Free

Essay

Q 353Q 353

Set up a proportion to solve each problem. Check to see whether your answer is reasonable. Then flip one side of your proportion to see what answer you get with an incorrect set-up. Explain why the second answer is unreasonable. See Example 2.
Write your own application problem that can be solved by setting up a proportion. Also show the proportion and the steps needed to solve your problem.

Free

Essay

Q 354Q 354

Set up a proportion to solve each problem. Check to see whether your answer is reasonable. Then flip one side of your proportion to see what answer you get with an incorrect set-up. Explain why the second answer is unreasonable. See Example 2.
A survey of college students shows that 4 out of 5 drink coffee. Of the students who drink coffee, 1 out of 8 adds cream to it. How many of the 56,100 students at Ohio State University would be expected to use cream in their coffee

Free

Essay

Q 355Q 355

Set up a proportion to solve each problem. Check to see whether your answer is reasonable. Then flip one side of your proportion to see what answer you get with an incorrect set-up. Explain why the second answer is unreasonable. See Example 2.
About 9 out of 10 adults think it is a good idea to exercise regularly. But of the ones who think it is a good idea, only 1 in 6 actually exercises at least three times a week. At this rate, how many of the 300 employees in our company exercise regularly

Free

Essay

Q 356Q 356

Set up a proportion to solve each problem. Check to see whether your answer is reasonable. Then flip one side of your proportion to see what answer you get with an incorrect set-up. Explain why the second answer is unreasonable. See Example 2.
The nutrition information on a bran cereal box saysthat a -cup serving provides 80 calories and 8 grams of dietary fiber. At that rate, how many calories and grams of fiber are in a -cup serving
( Source: Kraft Foods, Inc.)

Free

Essay

Q 357Q 357

Set up a proportion to solve each problem. Check to see whether your answer is reasonable. Then flip one side of your proportion to see what answer you get with an incorrect set-up. Explain why the second answer is unreasonable. See Example 2.
A -cup serving of whole grain penne pasta has 210 calories and 6 grams of dietary fiber. How many calories and grams of fiber would be in a 1-cup serving ( Source: Barilla Pasta.)

Free

Essay

Q 358Q 358

A box of instant mashed potatoes has the list of ingredients shown in the table. Use this information to work Exercises 41-42 in order.
Find the amount of each ingredient needed for 6 servings. Show two different methods for finding the amounts. One method should use proportions.

Free

Essay

Q 359Q 359

A box of instant mashed potatoes has the list of ingredients shown in the table. Use this information to work Exercises 41-42 in order.
Find the amount of each ingredient needed for 18 servings. Show two different methods for finding the amounts, one using proportions and one using your answers from Exercise.
Find the amount of each ingredient needed for 6 servings. Show two different methods for finding the amounts. One method should use proportions.

Free

Essay

Supplementary Materials