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A repair bill for your car is $553. The parts cost $265. The labor cost is $48 per hour. Write and solve an equation to find the number of hours tt of labor spent repairing the car.

 Aug 31, 2022
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553=265+48t
t=6

Explanation:

Let R be the repair bill
Let P be the cost of parts
Let L be the labor cost

R=P+L

R=553
P=265

553=265+L

Let t be the labor duration
Let r be the labor rate

L=rt

r=48

⇒L=48t

553=265+L

⇒553=265+48t
⇒288=48t
⇒t=6

 Aug 31, 2022

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