Final answer:
To determine the cost of labor, subtract the cost of parts from the total cost. The labor cost is $272 - $92, which equals $180. The hourly labor rate can be found by dividing the labor cost by the number of hours worked, resulting in an hourly rate of $45.
Step-by-step explanation:
The question is asking for the cost of labor given that the total cost for repair work done on a computer is $272, which includes $92 for parts and the labor. We can calculate the cost of labor by subtracting the cost of parts from the total cost. The equation to find the cost of labor can be written as:
Labor Cost = Total Cost - Cost of Parts
Plugging in the given values, we get:
Labor Cost = $272 - $92
By solving the equation, we find the labor cost:
Labor Cost = $180
Now, if we want to find out the hourly rate for the labor, we can take the total labor cost and divide it by the number of hours worked. Since the tech worked for 4 hours, the equation for the hourly rate is:
Hourly Rate = Labor Cost / Number of Hours Worked
Hourly Rate = $180 / 4 hours
Hourly Rate = $45 per hour