garage A charges a flat fee of $6 per car plus $o.50 per hour. garage B charges a flat fee of $2 per car plus $1 per hour. after how many hours will the cost of both garages be equal?
6 + .50h = 2 + 1h where h is the number of repair hours
Subtract 2 from both sides and .50h from both sides
4 = .50h
Divide both sides by .50
h = 8
And the charges will be equal after 8 hours.....!!!!
