Question

For a particular cargo train, the amount of fuel needed for a trip varies directly with the number of miles traveled. If the train needs 300 gallons of fuel for a 100 mile trip, how much fuel does it need for a 750-mile trip?

Answer 1

There are multiple ways you could solve this, but I set up a proportion. You put gallons over miles, and cross-multiply, and solve for x. The final answer will be 2250 gallons