SOLUTION: Working together, Sarah and Heidi can clean the garage in 6 hours. If they work alone, it takes Heidi 9 hours longer than it takes Sarah. How long would it take Heidi to clean the
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Question 817631: Working together, Sarah and Heidi can clean the garage in 6 hours. If they work alone, it takes Heidi 9 hours longer than it takes Sarah. How long would it take Heidi to clean the garage alone?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
6/h+6/s=1,
h=s+9
h = 18, s = 9
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