Two mechanics worked on a car. the first mechanic worked for 10 hours, and the second mechanic worked for 5 hours. together they charged a total of $1325 . what was the rate charged per hour by each mechanic if the sum of the two rates was $160 per hour?

10x + 5y = 1325

x + y = 160 --> y = 160 - x

II in I

10x + 5(160 - x) = 1325

10x + 800 - 5x = 1325

5x = 525

x = 105

y = 160 - 105 = 55

687.09 dollars       happy now

step-by-step explanation: 6870

1857 times .63 equals 1169.91 subtract that from 1857 you get 687.09

ruth is 6 years old

step-by-step explanation:

6 + 24 = 30,   so 6/30 = .2  

if you do 1/5 it also equals .2, so that is the answer.