Question

An electrician charges $42 per hour. He estimates that he will need $628 in materials for a project and the total cost of the project will be $1,384. How many hours does the electrician expect the job to take?

- A) 48 hours
- B) 33 hours
- C) 42 hours
- D) 18 hours

Answer 1

The electrician expects the job to take 18 hours.

Step-by-step explanation:

To find the number of hours the electrician expects the job to take, we can subtract the cost of materials from the total cost of the project. The remaining cost represents the cost of labor.

Total labor cost = Total cost - Cost of materials

Total labor cost = $1384 - $628

Total labor cost = $756

Since the electrician charges $42 per hour, we can divide the total labor cost by the hourly rate to find the expected number of hours.

Expected number of hours = Total labor cost / Hourly rate

Expected number of hours = $756 / $42

Expected number of hours = 18 hours

Therefore, the electrician expects the job to take 18 hours.