Question

Juan hires an electrician. Juan pays a one-time fee of $30 and $45 for each hour the electrician works. If the electrician works for 5 hours, what is the total cost?

a) $55
b) $75
c) $105
d) $225

Answer 1

The total cost for hiring the electrician is $255, which is calculated by adding the one-time fee of $30 to the cost of the hours worked ($45/hour × 5 hours). The correct answer is d).

Step-by-step explanation:

The question involves calculating the total cost Juan has to pay for hiring an electrician. The electrician charges a one-time fee and an hourly rate. The calculation is straightforward: first, multiply the number of hours worked by the hourly rate, then add the one-time fee to this amount.

The electrician works for 5 hours at an hourly rate of $45. Therefore, the cost for the hours worked is 5 hours × $45/hour = $225. Next, we add the one-time fee of $30 to the hourly cost to get the total cost: $225 + $30 = $255.

So, the correct answer to the question, 'If the electrician works for 5 hours, what is the total cost?' would be none of the provided options (a) $55 (b) $75 (c) $105 (d) $225, since the total cost is actually $255.