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 = [tex]\frac{distance traveled }{number of gallons}[/tex]
Number of gallons = [tex]\frac{distance traveled }{rate}[/tex]
Number of gallons = [tex]\frac{400}{21}[/tex] = 19gallons
