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

Answer:

19gallons

Step-by-step 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  = $\frac{distance traveled }{number of gallons}$

             Number of gallons = $\frac{distance traveled }{rate}$  

            Number of gallons = $\frac{400}{21}$   = 19gallons