A car mechanic charges $35 per hour for labor plus $200 for parts to fix a car's wheel bearings. If the mechanic charges a customer $375, which of the following equations can be used to find the time, t, the mechanic spent on the repair?
a. 200t + 35 = 275
b. 35t + 200 = 375
c. 35t + 375 = 200
d. 35t = 375
The correct equation is:
35t + 200 = 375
This equation represents the total cost for the repair, including both the labor cost and the cost of the parts. Solving for t will give you the time the mechanic spent on the repair.