SOLUTION: a mason can construct a retaining wall in 10 h. with the mason's apprentice assisting, the task takes 6 h. how long would it take the apprentice, working alone, to construct the wa

Algebra ->  Rate-of-work-word-problems -> SOLUTION: a mason can construct a retaining wall in 10 h. with the mason's apprentice assisting, the task takes 6 h. how long would it take the apprentice, working alone, to construct the wa      Log On


   

Question 446852: a mason can construct a retaining wall in 10 h. with the mason's apprentice assisting, the task takes 6 h. how long would it take the apprentice, working alone, to construct the wall?
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
6%281%2F10+%2B+1%2Fx%29+=+1
==> 1%2F10+%2B+1%2Fx+=+1%2F6
==> 1%2Fx++=+1%2F6+-+1%2F10
==> 1%2Fx+=+1%2F15
==> x = 15 hours for the apprentice.