Answer:
- equation: 1368 = 380 +52x
- labor hours: 19
Step-by-step explanation:
The desired equation will relate labor cost, parts cost, and total cost.
<h3>A.</h3>
The total cost is the sum of the parts cost and the product of labor hours and labor rate. We're told to use x to represent labor hours.
total cost = part cost + (labor rate)(labor hours)
1368 = 380 + 52x
__
<h3>B.</h3>
This equation can be solved in 2 steps:
988 = 52x . . . . . . . step 1, subtract 380 from both sides
19 = x . . . . . . . . . . step 2, divide both sides by the coefficient of x
The number of labor hours was 19.
