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December 21, 2014

Homework Help: math- word problems

Posted by kayla on Wednesday, September 24, 2008 at 4:55pm.

I tried doing this problem but i just dont get it:
A boy has 16 coins consisting of nickles, dimes, and quarters. The number of nickles is 3 less than the number of dimes and the value of the quarters is 55 cents greater than the value of the dimes. How many coins of each kind has he?

2) If three pipes are all opened, they can fill an empty swimming pool in 3 hours. The largest pipe alone takes one third the time that the smallest pipe takes and half the time the other pipe takes. How long will each pipe take by itself.

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