document.write( "Question 885097: One inlet pipe can fill an empty pool in 8 hours, and a drain can empty the pool in 16 hours. How long will it take the pipe to fill the pool if the drain is left open? \n" ); document.write( "

Algebra.Com's Answer #534913 by josgarithmetic(39617) $\"\"$ $\"About$

You can put this solution on YOUR website!
Sum of the FILL rates. One pipe fills and the other pipe fills LESS THAN ZERO rate.\r
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\n" ); document.write( "\n" ); document.write( "x = how long to fill if both pipes are open at the same time\r
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\n" ); document.write( "\n" ); document.write( " $\"1%2F8%2B%28-1%2F16%29=1%2Fx\"$
\n" ); document.write( " $\"1%2F8-1%2F16=1%2Fx\"$
\n" ); document.write( " $\"2-1=16%2Fx\"$
\n" ); document.write( " $\"1%2Ax=16\"$
\n" ); document.write( " $\"highlight%28x=16%29\"$ hours \n" ); document.write( "

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