SOLUTION: Two mechanics worked on a car. The first mechanic charged $65 per hour, and the second mechanic charged $100 per hour. The mechanics worked for a combined total of 25 h

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Two mechanics worked on a car. The first mechanic charged $65 per hour, and the second mechanic charged $100 per hour. The mechanics worked for a combined total of 25 h      Log On


   

Question 1060341: Two mechanics worked on a car. The first mechanic charged
$65
per hour, and the second mechanic charged
$100
per hour. The mechanics worked for a combined total of
25
hours, and together they charged a total of
$1800
. How long did each mechanic work?
Answer by jorel555(1290) About Me  (Show Source):
You can put this solution on YOUR website!
Let m be the 1st mechanic, and n be the 2nd. Then:
m+n=25
65m+100n=1800
100m+100n=2500
35m=700
m=20
n=5.
The 1st mechanic worked 20 hours; the 2nd one worked 5 hours. ☺☺☺☺