an electrician charges $75 as a one time fee plus an additional $45 per hour.If the totle bill is $131.25, how many hours did it take for the electrician to complete the repair
Let's assume the electrician took x hours to complete the repair.
The hourly charges would be 45x.
The total bill would be the one-time fee plus the hourly charges: 75 + 45x.
According to the question, the total bill is $131.25, so we can write the equation:
75 + 45x = 131.25
Subtracting 75 from both sides of the equation, we get:
45x = 131.25 - 75
45x = 56.25
Dividing both sides of the equation by 45, we get:
x = 56.25/45
x ≈ 1.25
Therefore, it took approximately 1.25 hours for the electrician to complete the repair.