document.write( "Question 742195: One pipe can fill a tank in 20 minutes, while
\n" ); document.write( "another takes 30 minutes to fill the same tank. How long would it take the two pipes together to fill the tank?
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Algebra.Com's Answer #852665 by josgarithmetic(39720) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "                   RATE          TIME        TANKS\r\n" );
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document.write( "ONE PIPE             1/20           20         1\r\n" );
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document.write( "ANOTHER PIPE         1/30           30         1\r\n" );
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\r
\n" ); document.write( "\n" ); document.write( "If the two pipes are used together for filling the one tank, then
\n" ); document.write( " $\"%281%2F20%2B1%2F30%29%2Ax=1\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"%283%2B2%29x=60\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"5x=60\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"x=12\"$ ---------------twelve minutes \n" ); document.write( "

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