Suppose that a highway is governed by a use fee charged to motorists that is based on congestion, operation and maintenance. The total traffic t is used to determine the cost of 5t² + 7t. What is the average cost per motorist?
A) 12
B) 5t + 7
C) 10
D) 10t + 7

Question

Quizplus · Accepted Answer

The average cost per motorist is found by dividing the total cost by the total traffic, t. The total cost is 5t² + 7t, so the average cost per motorist is (5t² + 7t) / t = 5t + 7.

Suppose That a Highway Is Governed by a Use Fee