Question

one moving company charges $800 plus $16 per hour. Another moving company charges $720 plus $21 per hour. At what number of hours will the charge by both companies be the same? What is the charge?

Answer 1

Let x = time in hours Since their costs must be equal, 800 + 16x = 720 + 21x Solving, 800 - 720 = 21x - 16x 80 = 5x x = 16 hours Hope this helps~ :3