SOLUTION: It takes a woodworker 30 hours to build a cabinet that sells for $660 in the store. The store owner wants to make a profit of at least $150 on each cabinet after paying the woodwor

Algebra ->  Rate-of-work-word-problems -> SOLUTION: It takes a woodworker 30 hours to build a cabinet that sells for $660 in the store. The store owner wants to make a profit of at least $150 on each cabinet after paying the woodwor      Log On


   



Question 1104765: It takes a woodworker 30 hours to build a cabinet that sells for $660 in the store. The store owner wants to make a profit of at least $150 on each cabinet after paying the woodworker. Write and solve an inequality that represents the hourly wages of the woodworker.

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

x = hourly wage for the woodworker
Revenue = R(x) = 660
Cost = C(x) = 30*x
Profit = P(x) = R(x) - C(x) = 660-30x

We want the profit P(x) to be 150 or larger, so P%28x%29+%3E=+150
P%28x%29+%3E=+150

660-30x+%3E=+150

660-30x%2B30x+%3E=+150%2B30x Add 30x to both sides

660+%3E=+150%2B30x

660-150+%3E=+150%2B30x-150 Subtract 150 from both sides

510+%3E=+30x

30x+%3C=+510

30x%2F30+%3C=+510%2F30 Divide both sides by 30

x+%3C=+17

The highest wage for the woodworker is 17 dollars per hour