Solve the problem.
-The federal government requires a car manufacturer to have a minimum miles per gallon (mpg)average over the models it makes. Suppose that the mpg's for four of the the five models of a manufacturer are 16, 19, 29, and 21, and the manufacturer just meets the government standard of 30 mpg. Find the mileage for the fifth model.
A)21 mpg
B)17 mpg
C)65 mpg
D)30 mpg

Question

Quizplus · Accepted Answer

To meet the government standard of 30 mpg across all models, the total mpg for all five models must equal 5 times 30, which is 150 mpg. The sum of the mpg for the four known models is 16 + 19 + 29 + 21 = 85 mpg. Subtracting this from 150 mpg gives the mpg for the fifth model as 150 - 85 = 65 mpg.

Solve the Problem. -The Federal Government Requires a Car Manufacturer to Have a to Have