SOLUTION: Two mechanics worked on a car. The first mechanic worked for 20 hours, and the second mechanic worked for 15 hours. Together they charged a total of $2175. What was the rate charge

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Two mechanics worked on a car. The first mechanic worked for 20 hours, and the second mechanic worked for 15 hours. Together they charged a total of $2175. What was the rate charge      Log On


   

Question 1070035: Two mechanics worked on a car. The first mechanic worked for 20 hours, and the second mechanic worked for 15 hours. Together they charged a total of $2175. What was the rate charged per hour by each mechanic if the sum of the two rates was $130 per hour?
Answer by josgarithmetic(39614) About Me  (Show Source):
You can put this solution on YOUR website!
x, y
Each mechanic's rate

Sum of their rates, x%2By=130, as described.

Total charges, 20x%2B15y=2175. Simplify this one before solving the system.
4x%2B3y=435

This is the system to solve:
system%28x%2By=130%2C4x%2B3y=435%29