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23 October, 14:47

The cost to repair linda's car is $500, including parts and labor. the cost of parts is $140. if the cost of labor is $40 per hour, how many hours of labor did the repairs take?

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  1. 23 October, 15:49
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    500=140+40h

    minus 140 both sides

    360=40h

    divide y 40

    9=h

    9 hours
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