Question

My car uses 15 gallons of gas to make 200 miles. How many gallons will it use for 320 miles?

Solve by making a proportion

Answer 1

24

Explanation:

200/15 = 13 1/3

200/15 = 320/x

200x = 4800

(cancel out the zeros)

2x = 48

x = 24

Answer 2

Explanation:

200/15 = 13 1/3

200/15 = 320/x

200x = 4800

(cancel out the zeros)

2x = 48

x = 24