Question

Mike’s car averages 21 miles per gallon of gas. About how many gallons of gas will Mike use for a trip of 400 miles?

Answer 1

19gallons

Explanation:

Given parameters:

Mike's car rate = 21miles per gallon

Distance = 400 miles

Unknown:

Number of gallons of gas = ?

Solution:

The rate of fuel consumption by Mikes car is given as;

Rate =
`(distance traveled )/(number of gallons)`

Number of gallons =
`(distance traveled )/(rate)`

Number of gallons =
`(400)/(21)` = 19gallons