how much per hour?

Question

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 $1850

. What was the rate charged per hour by each mechanic if the sum of the two rates was $145

 per hour?

First mechanic:$ perhour

Second mechanic:$ perhour

Answer 1

Let x = hourly rate of the first mechanic and y = hourly rate of the second mechanic

x + y = 145

20x + 5y = 1850

20x + 5(145 - x) = 1850

Solve for x and y.