A truck drives 120 miles and uses 5 gallons of gasoline. How far could the truck drive with 7 gallons of gasoline?(1 point)

1 answer

To find out how far the truck could drive with 7 gallons of gasoline, we can use a proportion since the truck's fuel efficiency is constant.

Let's set up the proportion:
120 miles / 5 gallons = x miles / 7 gallons

Cross multiplying, we get:
5x = 120 * 7

Simplifying, we find:
5x = 840

Dividing both sides by 5, we find:
x = 840 / 5

x = <<840/5=168>>168

Therefore, the truck could drive 168 miles with 7 gallons of gasoline.