SOLUTION: Olga Palmieri can clean the gutters on 27 houses in 3.5 days. her co-worker, Jien Ping, can clean the same gutters in 4.5 days. How long will it take them working together to clean

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Question 851507: Olga Palmieri can clean the gutters on 27 houses in 3.5 days. her co-worker, Jien Ping, can clean the same gutters in 4.5 days. How long will it take them working together to clean the gutters on the 27 houses?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
1/3.5+1/4.5=1/x
x = 1.96875