Two mechanics worked on a car the first mechanic worked for 15 hours and the second mechanic worked for 5 hours together they charged a total

Question

of $1,925 what was the rate charge per hour by each mechanic if the sum of the two rate was $175 per hour

Answer 1

x+y = 175 ---> y = 175-x

15x + 5y = 1925

15x + 5 ( 175-x) = 1925

15x + 875 - 5x = 1925

10x + 875 = 1925

10x = 1050

x = 105

y = 70