Question

Sung is going to rent a truck for one day. There are two companies he can choose from, and they have the following prices.

Company A charges $89 and allows unlimited mileage.
Company B has an initial fee of $75 and charges an additional $0.70 for every mile driven.
For what mileages will Company A charge less than Company B?
Use M for the number of miles driven, and solve your inequality for M .

Answer 1

Explanation:

Use the equation

89 < 75 + 0.7*M Subtract 75 from both sides

89 - 75 < 0.7M Combine

14 < 0.7 M Divide both sides by 0.7

14/0.7 < M

20 < M

If M goes over 20 then the flat rate is cheaper.