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OpenStudy (anonymous):
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? 0.59 2.71 3.50 8.75
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OpenStudy (anonymous):
b
OpenStudy (anonymous):
3.5 hours. To solve subtract the total cost for parts from the total cost 490-210=280. Then divide the total cost for labor by the hourly price charged 280/80=3.5
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