Question

omega just got her pilot's license and wants to rent a plane. The Platinum Plane Company charges $180 plus $92 per hour to rent a plane. The Plastic Plane Company charges $250 plus $78 per hour.
For what number of hours would the companies charge the same amount?
what would the charge be for the number of hours?

Answer 1

180 + 92h = 250 + 78h
92h - 78h = 250 - 180
14h = 70
h = 70/14
h = 5 <== they will charge the same at 5 hrs

180 + 92(5) = $ 640
250 + 78(5) = $ 640

and they will both charge $ 640 <==