Question

Victoria needed to get her computer fixed. She took it to the repair store. The

technician at the store worked on the computer for 2.25 hours and charged her $70
for parts. The total was $193.75. Write and solve an equation which can be used to
determine x, the cost of the labor per hour.

Answer 1

$55/per hour

Explanation:

Let's call the cost of labor per hour "x".

We know that the cost of parts is $70 and the cost of labor is x * 2.25 (since the technician worked for 2.25 hours).

We also know that the total cost is $193.75. So we can set up the equation:

x * 2.25 + $70 = $193.75

To solve for x, we'll first get the x terms on one side of the equation by subtracting $70 from both sides:

x * 2.25 = $193.75 - $70

x * 2.25 = $123.75

Finally, we'll divide both sides by 2.25 to solve for x:

x = $123.75 / 2.25

x = $55/hour