SOLUTION: Pam and Cindy, working together, can rake The yard in 5 hours. working alone, Cindy takes five times as long as pam. How long does it take pam to rake The yard alone?
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Question 915226: Pam and Cindy, working together, can rake The yard in 5 hours. working alone, Cindy takes five times as long as pam. How long does it take pam to rake The yard alone? Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! 1/a+1/b=1/x
a=b*5
1/b*5+1/b=1/5
1/b*5+5/5*b=1/5
6/b*5=1/5
5*b=30
b=6
a=6*5
a=30 b=6
check
1/a+1/b=1/x
1/30+1/6=1/5
0.33333333e-1+0.16666667=1/5
0.2=1/5
0.2=0.2
x=5 hours working together
a=30 hours working alone
b=6 hours working alone
ok
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