Gerald drove his car 360 miles on a trip. He used 20 gallons of gasoline. Which of the following is a unit rate that describes the distance Gerald drove per gallon of gasoline used?
miles per gallon means mi/gal
So just use the information provided.
360mi / 20gal = 360/20 = 18 mi/gal
To find the unit rate that describes the distance Gerald drove per gallon of gasoline used, we need to divide the total distance by the total amount of gasoline used.
In this case, the total distance Gerald drove is 360 miles and the total amount of gasoline used is 20 gallons.
To find the unit rate, simply divide the distance by the amount of gasoline:
360 miles / 20 gallons = 18 miles per gallon
Therefore, the unit rate that describes the distance Gerald drove per gallon of gasoline used is 18 miles per gallon.