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20-05-2018
Mathematics

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A computer repair bill was $225.

This included $75 for parts and $50 for each hour of labor.

Find the number of hours of labor.

Respuesta :

cdw2014 cdw2014

20-05-2018

Let's write an equation to describe the situation:

25 + 50x = 225

Now solve for x (number of hours of labor):

25 - (25) + 50x = 225 - (25)

50x = 200

50x/(50) = 200/(50)

x = 4

The answer is 4 hours.

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