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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 of labor spent repairing the car

Respuesta :

datgamer13
Really all you need to do is write the addition equation and use n for an unknown number, and b for the total bill.

Your equation would be:  $553 + $265 + 48n = b

Or, simplified: $818 + 48n = b
st4rgrl
An equation that can be used to find the number of labour hours is "265+48x=553." 

265 →  cost of the parts
48x → labour cost per hour
553 → total cost for repair bill

You can start to solve the equation by subtracting 265 from both sides so that "48x" is isolated.
265+48x=553
-265        -265
----------------------
         48x=288

Divide 48 on both sides to find x.
48x=288
------ ------
48     48
x=6

X is equal to 6, which then means that 6 hours of labour were spent repairing the car.

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