Kerry drove 312 miles on 11 gallons of gas. She had 175 miles left to
complete her trip. How many more gallons of gas would she need?
a. 5.9 gal
b. 6.2 gal
c. 6.5 gal
d. 6.8 gal
To find out how many gallons of gas Kerry needs, we need to first calculate her gas mileage:
312 miles ÷ 11 gallons = 28.36 miles per gallon
Next, we can calculate how many gallons she would need to travel the remaining 175 miles:
175 miles ÷ 28.36 miles per gallon = 6.16 gallons
Rounding up to the nearest tenth, we get 6.2 gallons. Therefore, the answer is b. 6.2 gal.