SOLUTION: Help with this question please. 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

Algebra ->  Proportions -> SOLUTION: Help with this question please. 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       Log On


   

Question 845062: Help with this question please. 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.
Thank you.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
4/7+4/j=1
4/j=3/7
1/j=3/28
j=28/3