Question

Miguel's family drove 357 miles on their weekend trip. Their car's average gas mileage was 25.5 miles per gallon. How many gallons of gas did they use? Round your answer to the nearest tenth of a gallon if necessary.

Answer 1

Aswer b

Explanation:

its b

Answer 2

Explanation:

This is a unit rate problem. If they drove 357 miles and averaged 25.5 miles per gallon, divide 357 by 25.5 to get gallons used. Mathematically,

`(357miles)/((25.5miles)/(gallon) )` simplifies a bit to

`(357miles)/(1) *(gallons)/(25.5miles)`

and the label "miles" cancels out, leaving us with the unit we want of gallons. Mathematically, we divide 357 by 25.5 and get

14 gallons