document.write( "Question 1200985: A water tank can be filled by an inlet pipe in
\n" ); document.write( "9
\n" ); document.write( " hours. It takes
\n" ); document.write( "4
\n" ); document.write( " times as long for the outlet pipe to empty the tank. How long will it take to fill the tank if both pipes are open? \n" ); document.write( "

Algebra.Com's Answer #835211 by josgarithmetic(39617) $\"\"$ $\"About$

You can put this solution on YOUR website!

\r\n" );
document.write( "PIPE             SPEED           TIME        VOLUME(in tanks)\r\n" );
document.write( "Inlet             1/9              9              1\r\n" );
document.write( "Outlet            1/36             36             1\r\n" );
document.write( "\r\n" );
document.write( "BOTH PIPES                 x              1\r\n" );
document.write( "

\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"%281%2F9-1%2F36%29x=1\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"%284%2F36-1%2F36%29x=1\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"%283%2F36%29x=1\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x%2F12=1\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight%28x=12%29\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "--------------------------------------not this------------------------------------
\n" ); document.write( " $\"cross%28%281%2F9%2B1%2F36%29x=1%29\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"cross%28%284%2F36%2B1%2F35%29x=1%29\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"cross%28%285%2F36%29x=1%29\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"cross%28x=36%2F5%29\"$ $\"hour\"$ \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );