Question

Two mechanics worked on a car. The first mechanic worked for
10
hours, and the second mechanic worked for
15
hours. Together they charged a total of
$2575
. What was the rate charged per hour by each mechanic if the sum of the two rates was
$210
per hour?

Answer 1

1st mechanic rate be "x dollars per hour"
Let 2nd mechanic rate be "y dollars per hour"

Answer 2

?