Question

I have no clue on how to set up this equation please help.

A car rental company offers two plans for renting a car.
Plan A:21 dollars per day and 18 cents per mile

Plan B:25.44 dollars per day and 15 cents per mile

If you plan to rent the car for one day. and "m" represents the number of miles driven in that day,for how many miles driven would you save money with plan A?

m <> <= >=?

Answer 1

Very simple.

When is
21 + .18m = 24.44 + .15 m ?
or
2100 + 18m = 2444 + 15m

just solve for m

at the value of m, they are equal, so you decide for miles above or below that value.

Answer 2

thank you