Solve the problem.
-Greg is opening a car wash. He estimates his cost equation as C = 9000 + 0.09x and his revenue equation as R = 1.65x, where x is the number of cars washed in a six-month period. Find the number of cars that must be Washed in a six-month period for Greg to make a profit.
A)At least 4770 cars
B)At least 577 cars
C)At least 57,693 cars
D)At least 5770 cars

Question

Quizplus · Accepted Answer

To make a profit, Greg's revenue (R) must be greater than his costs (C). Setting the revenue equation greater than the cost equation: 1.65x > 9000 + 0.09x. Solving for x gives the minimum number of cars that need to be washed to start making a profit, which is at least 5770 cars.

Solve the Problem. -Greg Is Opening a Car Wash. He Estimates His Cost