SOLUTION: Kim and Josh can clean a house together in 4 hours. If it takes Kim 7 hours to clean the house by herself, how long would it take josh to clean the house alone? Leave your answer i

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: Kim and Josh can clean a house together in 4 hours. If it takes Kim 7 hours to clean the house by herself, how long would it take josh to clean the house alone? Leave your answer i      Log On

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Question 738299: Kim and Josh can clean a house together in 4 hours. If it takes Kim 7 hours to clean the house by herself, how long would it take josh to clean the house alone? Leave your answer in improper fraction form.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
1/7+1/x=1/4
x=28/3