let the number of hours be h
costA = 100 + 50h
costB = 50 + 75h
they are the same when costA = costB
100 + 50h = 50 + 75h
50 = 25h
h = 2
when h = 2, costA = costB = 50+75(2) = 200
(could use either equation, since they are equal)
You and your friends form a band. You want to record a demo. Studio A rents for $100 up front plus $50 per hour. Studio B rents for $50 up front plus $75 per hour. After how many hours will the rent be the same? What will the rent be? .......... PLEASE HELP. I NEED THIS TO BE SOLVED WITH SUBSTITUTION AND CANNOT UNDERSTAND.
1 answer
1 answer