Question

A car traveled 200 miles on 8 1/2 gallons of gas. How much gas will it take to drive 1 mile?

Answer 1

17/400 gallons or 0.0425 gallons

Explanation:

Take the ratio of the scale and the actual values :

• 200 miles : 8 1/2 gallons = 1 mile : x gallons
• 200/(8.5) = 1/x
• 400/17 = 1/x
• x = 17/400 gallons or 0.0425 gallons

Answer 2

23 1/2 gallons of gas to travel one mile

Explanation:

Given the car can travel 200 miles on 8 1/2 gallons of gas, we divide 200 by 8 1/2.

8 1/2 = 8.50 = 8.5

200/8.5 = 23.5 = 23.52 = 23 1/2