SOLUTION: working together, Brenda and Bill can pick 40 bushels of apples in 3.94 hours. Had he done it alone it would have taken Bill nine hours. Find how long it would take Brenda to do it

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: working together, Brenda and Bill can pick 40 bushels of apples in 3.94 hours. Had he done it alone it would have taken Bill nine hours. Find how long it would take Brenda to do it      Log On


   

Question 899254: working together, Brenda and Bill can pick 40 bushels of apples in 3.94 hours. Had he done it alone it would have taken Bill nine hours. Find how long it would take Brenda to do it alone.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
rate for A alone 9
rate for A & B together 3.94
1/a+1/b=1/x
1/9+1/b=1/3.94
1/b=1/3.94-1/9
1/b=9/35.46-3.94/35.46
1/b=5.06/35.46
1/b=1/7.00790514
b=7.00790514
rate for B alone 7.00790514