Question

Bill wants to rent a car. Rental Company A charges $35 per day plus $0.10 per mile driven. Rental Company B charges $25 per day plus $0.15 per mile driven. After how many miles driven will the price charged by each company be the same?

Answer 1

After 300 miles.

35+0.1x= 25+0.15x

-0.1x -.01x (0.1- 0.1 crosses out)

35= 25+0.15x

-25 -25 (25- 25 crosses out)

15= 0.15x

15/0.15= 0.15x/0.15 (crosses out)

300= x