Question 1

In 2003 the average speed of the winner of a race was 139.15 miles per hour. In 2000 the average speed of the winner was 153.751 miles per hour. How much faster was the average speed of the winner in 2000 compared to the winner in 2003?

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Question 2

Tanya bought 400 shares of one stock at $13.31 per share, and 350 shares of another stock at $17.64 per share. How much did she pay for the 750 shares? $__________

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Question 3

Evaluate. $- 0.074 \div ( - 0.2 )$

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Question 4

Simplify the numerical expression. -7(0.4) - 0.6 + 3.4(6) -- 0.1

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Question 5

The total length of the four sides of a square is 15.6 centimeters. How long is each side of the square?

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Question 6

The total length of the four sides of a square is 25.2 centimeters. How long is each side of the square? __________ centimeters

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Question 7

Evaluate. -12.8 - (-3.3)

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Question 8

Evaluate the algebraic expression for the given values of the variables. $0.4 x + 0.5 y$ for $x = - 5 \text { and } y = 3$ .

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Question 9

Evaluate. (2)(-8.6)

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Question 10

Evaluate. -5.2 + 15.5

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Question 11

Evaluate. (-0.6)(-52)

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Question 12

Evaluate. 7.4 - (-2.1)

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Question 13

Tanya bought 500 shares of one stock at $12.37 per share, and 250 shares of another stock at $16.82 per share. How much did she pay for the 750 shares?

Accepted Answer

The total amount Tanya paid for the 500 shares of the first stock is 500 * $12.37 = $6,185. The total amount she paid for the 250 shares of the second stock is 250 * $16.82 = $4,205. Therefore, the total amount she paid for the 750 shares is $6,185 + $4,205 = $10,390.

Question 14

Evaluate. $8.05 \div 3.5$

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Question 15

Evaluate the algebraic expression for the given values of the variables. $- x - 4 y + 3 z$ for $x = 2.3 , y = - 3.8 \text {, and } z = 4.4$ .

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Question 16

In 2003 the average speed of the winner of a race was 133.45 miles per hour. In 2000 the average speed of the winner was 154.898 miles per hour. How much faster was the average speed of the winner in 2000 compared to the winner in 2003? __________ miles per hour

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Question 17

Simplify the numerical expression. 18.2 + 22.4 - 16.2

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Question 18

Simplify the numerical expression. 0.68(0.5 + 0.5)

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Question 19

Evaluate. 0.38 + 0.33

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Question 20

Evaluate. (8.9) + (-2.5)

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Quiz 2: The Real Numbers