SOLUTION: An auto repair shop charged a customer $280 to repair a car. The bill listed $80 for parts and the remainder for labor. If the cost of labor is $50 per hour, how many hours of labo

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: An auto repair shop charged a customer $280 to repair a car. The bill listed $80 for parts and the remainder for labor. If the cost of labor is $50 per hour, how many hours of labo      Log On


   

Question 1171390: An auto repair shop charged a customer $280 to repair a car. The bill listed $80 for parts and the remainder for labor. If the cost of labor is $50 per hour, how many hours of labor did it take to repair the car?

Answer by ikleyn(52786) About Me  (Show Source):
You can put this solution on YOUR website!
.

    how many hours of labor = %28280+-+80%29%2F50 = 200%2F50 = 4 hours.    ANSWER

Solved.

The formula is SELF-EXPLANATORY.