document.write( "Question 909520: I have tried doing quite a few of these but the example in the book is different, please help me!\r
\n" ); document.write( "\n" ); document.write( "An inlet pipe on a swimming pool can be used to fill the pool in 15 hours. The drain pipe can be used to empty the pool in 24 hours. If the pool is 1/4 filled and then the inlet pipe and drain pipe are opened, how long from that time will it take to fill the pool?
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Algebra.Com's Answer #551890 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
RT=V rate time volume;
\n" ); document.write( "T units of minutes and V units of POOL, the amount of pools.\r
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\n" ); document.write( "\n" ); document.write( "The filling rate will be \"1%2F15-1%2F24\" POOLS per MINUTE when both pipes are open. The pool is already \"%281%2F4%29\", so the situation is to fill \"3%2F4\" pool.\r
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\n" ); document.write( "\n" ); document.write( "Let t be the time in minutes to fill \"3%2F4\" pool.\r
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\n" ); document.write( "\n" ); document.write( "\"highlight%28%281%2F15-1%2F24%29t=3%2F4%29\".
\n" ); document.write( "Solve for t.
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