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A mechanic charged $220.28 to repair a car. The price included charges for 3 hours of labor and $126.53 for parts. How much does the mechanic charge per hour, d, for labor?
Solve for d.

Answer :

HomertheGenius
220.8 = 126.35 + 3 d
3 d = 220.28 - 126.35
3 d = 93.75
d = 93.75
d = 31.25
Answer:  $31.25 per hour.

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