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 2,975 of. What was the rate cha

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Question 1186001: 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 2,975 of. What was the rate charged per hour by each mechanic if the sum of the two rates was 160 per hour?
Answer by ikleyn(52767)   (Show Source): You can put this solution on YOUR website!
.
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 2,975 .
What was the rate charged per hour by each mechanic if the sum of the two rates was 160 per hour?
~~~~~~~~~~~~~~~~~~~~~~~~~ 

1-st mechanic rate :  x dollars per hour.

2-nd mechanic rate : (160-x) dollars per hour.


Total money equation


    20x + 15*(160-x) = 2975    dollars.


The solution


    x =  = 115 dollars.


ANSWER.  1-st mechanic rate is  115 dollars per hour;  2-nd mechenic rate:  160-115 = 45 dollars per hour.

Solved.



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