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Two mechanics worked on a car. The first mechanic worked for 20 hours, and the second mechanic worked for 5 hours. Together they charged a total of 2375. What was the rate charged per hour by each mechanic if the sum of the two rates was 160 per hour?

 Feb 16, 2020
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Let the hourly rate of the first mechnic =F
Let the hourly rate of the second mechanic=S

 

F + S = 160.........................(1)
20F + 5S =2,375..................(2), solve for F, S


Use substitution or elimination to get:
F =$105 - hourly rate of the first mechanic.
S =$55 - hourly rate of the second mechanic.

 Feb 16, 2020

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