Question

two mechanics worked on a car. the first mechanic charged $115 per hour, and the second mechanic charged $85 per hour. the mechanics worked for a combined total of 35 hours, and together they charged a total of $3575 . how long did each mechanic work?

Answer 1

The mechanic who works 115/per hour worked 20 hours and the one that works 85/per hour worked 15 hours

(115x20)+(85x15)=$3575