Heather drove 265 miles using 10 gallons of gas. At this rate, how many gallons of gas would she need to drive 424 miles?

1 answer

We can use a proportion to solve this problem:

265 miles / 10 gallons = 424 miles / x gallons

Cross-multiplying, we get:

265x = 4240

Dividing both sides by 265:

x = 16

Therefore, Heather would need 16 gallons of gas to drive 424 miles.