Practice!

Sample Problem

A car rental rents out SUV’s for $300 a week and sedans for $220 a week. If the owner of the rental wants $75,000 in revenue, how many SUV’s must be rented if 150 sedans are rented?

SUV cars

Solution

75,000 = 300x + 220y, where x is the number of SUV’s rented and y is the number of sedans rented

75,000 = 300x + 220 (150)

75,000 = 300x + 33,000

42,000 = 300x

x = 140