The distance traveled in a car varies directly at the amount of gasoline use. If a car travels 640 mi and uses 32 gallons of gas, find the constant of variation or miles per gallon
A. 18 MPG
B. 22 MPG
C. 20 MPG
D. 24 MPG
To find the constant of variation or miles per gallon, we divide the distance traveled by the amount of gasoline used.
Miles per gallon = Distance traveled / Amount of gasoline used
Miles per gallon = 640 mi / 32 gallons
Miles per gallon = 20 MPG
Therefore, the correct answer is C. 20 MPG.