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38 votes
38 votes
Helpp

Jonathan needed to get his computer fixed. He took it to the repair store. The technician at the store worked on the computer for 3 hours and charged him $141 for parts. The total was $336. Write and solve an equation which can be used to determine x, the cost of the labor per hour.

User Stefano Cavion
by
3.1k points

2 Answers

17 votes
17 votes
195 is the answer
336-141=195
User MitchellK
by
3.1k points
15 votes
15 votes

Answer: x = 65

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Work Shown:

x = cost of labor per hour

3x = cost of the 3 hours of labor

3x+141 = cost of labor plus parts = total cost

3x+141 = 336

3x = 336-141

3x = 195

x = 195/3

x = 65

The hourly wage is $65 per hour for labor.

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Check:

1 hour = 65 dollars in labor costs

3 hours = 3*65 = 195 dollars in labor costs

195+141 = 336 dollars total

The answer is confirmed.

User Murtuza
by
2.5k points
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