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 $1625. What was the rate charged per hour by each mechanic if the sum of the two rates was $145

First mechanic:
Second mechanic:

Question

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 $1625. What was the rate charged per hour by each mechanic if the sum of the two rates was $145

First mechanic:
Second mechanic:

hero · Answer

Sum of rate charge per mechanic
$$r_1 + r_2 = 145$$

Total rate charge
$$5r_1 + 15r_2 = 1625$$

hero · Answer

Solve the system