f + s = 205
5 f + 15 s = 2025 ... f + 3 s = 405
subtracting equations ... 2 s = 200
Two mechanics worked on a car. The first mechanic worked for
5
hours, and the second mechanic worked for
15
hours. Together they charged a total of
$2025
. What was the rate charged per hour by each mechanic if the sum of the two rates was
$205
per hour
1 answer