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The bill for repairing a car was $311 .The cost for parts was $125 .The cost for Labor was$ 31 per hour .How many hours did the repair work taking?????
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The bill for repairing a car was $311 .The cost for parts was $125 .The cost for Labor was$ 31 per hour .How many hours did the repair work taking?????

User Worthwelle
by
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2 Answers

3 votes
bill=parts+labor
labor=31 times hours or h
parts=125
bill=311


311=125+31h
minus 125 both sides
186=31h
divide both sides by 31
6=h

6 hours
User Mangiucugna
by
8.1k points
1 vote
311-125= 186
186/ 31=6
It took 6 hours.
User AndW
by
7.6k points
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