The distance traveled in a car varies directly as the amount of gasoline used. If a car travels 640 miles and uses 32 gallons of gas, find the constant of variation or miles per gallon (mpg).(1 point) Responses 18 mpg 18 mpg 22 mpg 22 mpg 20 mpg 20 mpg 24 mpg
To find the constant of variation or miles per gallon (mpg), we need to divide the distance traveled (640 miles) by the amount of gasoline used (32 gallons).
Miles per gallon (mpg) = Distance traveled / Amount of gasoline used
= 640 miles / 32 gallons
= 20 mpg
Therefore, the constant of variation or miles per gallon (mpg) is 20 mpg.