A car travels 240 miles on 15 gallons of gas. How far can the car travel on 20 gallons of gas?

Step-by-step explanation:

Let x=distance traveled on 20 gal

One approach is to set up a simple ratio: 15 is to 240 as 20 is to x and this is written as follows:

15/240=20/x cross multiply (actually we are multiplying both sides by 240x)

15x=240*20=4800 divide both sides by 15

x=320 midistance travelled on 20 gal

Another approach would be to determine the mileage the car gets in miles/gal:

If the car goes 240 mi on 15 gal, then it goes 240/15 or 16 mi on 1 gal.

S our car gets 16 mi/gal and it can go 16*20 or 320 mi on 20 gal

they can both be solutions depends on the equation

step-by-step explanation:

what is the equation? ?