document.write( "Question 934291: Please help me solve this question: Pipe A can fill a tank in 5 h. Pipe B can fill it in 2 h less time than it takes Pipe C, a drainpipe, to empty the tank. With all three pipes open, it takes 3 h to fill the tank. How long would it take to pipe C to empty it? \n" ); document.write( "

Algebra.Com's Answer #567339 by josgarithmetic(39617) $\"\"$ $\"About$

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Understand that the signs for the rate for pipe B and pipe C are opposite, and you want to give a variable to the time for pipe C to empty the tank.\r
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\n" ); document.write( "\n" ); document.write( "RATES are as TANK per HOURS
\n" ); document.write( "Pipe A, $\"1%2F5\"$
\n" ); document.write( "Pipe B, $\"1%2F%28x-2%29\"$
\n" ); document.write( "Pipe C, $\"-1%2Fx\"$
\n" ); document.write( "All pipes open at the same time, $\"1%2F3\"$ tanks per hour.\r
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\n" ); document.write( "\n" ); document.write( "The rate for all pipes open at the same time is the sum of their individual rates.
\n" ); document.write( "... You see what to do? \n" ); document.write( "

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