contestada

A car repair shop charged $80 per hour for labor and $210 for the parts of a car. If the total cost of repair for the car was $490, how many hours did it take to repair the car? 1) 0.59 2) 2.71 3) 3.50 4) 8.75

Respuesta :

mathstudent55

Let h = number of hours.

The shop charges $80 per hour, so for h hours of labor you pay 80h.


The parts were $210, so the parts and labor charges combined are


80h + 210


That equals $490, so we get this equation.


80h + 210 = 490


80h = 280


h = 3.5


Answer: 3) 3.5

490-210= 280

280/80= 3.5 or 3.50

Your answer would be 3.50

Hope this helps :)