Question

Company A charges $55 per day plus $0.35 per mile to rent a car. Company B charges $50 per day plus $0.40 per mile. Jack wants to rent a car for three days. How many miles should Jack be traveling so that Company A is less expensive than Company B?

Answer 1

A: cost= 3*55+.35m
B: cost=3*50+.40m

set the costs equal, and solve for m.

Answer 2

so 12(8)x ≥ 72
x ≥ 72/96
x ≥ 3/4 ft