Solve the problem.
-The amount of gas that a helicopter uses is directly proportional to the number of hours spent flying. The helicopter flies for 2 hours and uses 22 gallons of fuel. Find the number of gallons of fuel that the helicopter uses
To fly for 6 hours.
A) 72 gal
B) 66 gal
C) 12 gal
D) 77 gal

Question

Quizplus · Accepted Answer

Let x be the number of gallons of fuel the helicopter uses to fly for 6 hours.
From the problem, we know that the amount of gas used is directly proportional to the number of hours spent flying. So we can set up the proportion:
2/22 = 6/x
Solving for x gives:
x = 66
Therefore, the helicopter would use 66 gallons of fuel to fly for 6 hours, which corresponds to choice B. We can set up a proportion to solve for the number of gallons of fuel used for 6 hours of flying time. Let x be the number of gallons of fuel used for 6 hours of flying time. Then we can write:

2/22 = 6/x

Cross-multiplying gives:

2x = 6*22 = 132

Dividing both sides by 2 gives:

x = 66

Therefore, the helicopter uses 66 gallons of fuel to fly for 6 hours. The answer is choice B).

Solve the Problem. -The Amount of Gas That a Helicopter Uses Is Directly