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  1. A carpenter worked for 4 days to finish a repair job. She charged $825 for 15 hours plus $278 for materials. What is the carpenter's rate per hour?

Let’s start solving:
=> 825 dollars + 278 dollars = 1 103 dollars is the total payment a carpenter have received
=> 15 hours is the total hours he worked
=> 1 103 / 15 = 73.5 dollars per hour. This is already including the material or equipment fee.

Answer:  Carpenter's rate per hour is $73.53.

Step-by-step explanation:

Since we have given that

Number of hours she charged for = 15 hours

Cost for 15 hours = $825

Cost of materials = $278

Total cost she charged is given by

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So, Carpenter's rate per hour is given by

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Hence, Carpenter's rate per hour is $73.53.

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