Mark’s earnings vary directly with the number of hours he works and can be modeled by the equation e = 8.50h, where e is his weekly earnings, and h is the number of hours he works that week. How many hours does he have to work to earn $340?

Respuesta :

Mark will have to work a total of 40 hours that week. 340 = 8.50h. 340/8.50 = h. h = 40