document.write( "Question 739937: One pipe fills a tank in eight hours. Another pipe can fill the tank in 12 hours. How long will it take to fill the tank if both pipes are operating simultaneously?
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Algebra.Com's Answer #451423 by lwsshak3(11628) $\"\"$ $\"About$

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One pipe fills a tank in eight hours. Another pipe can fill the tank in 12 hours. How long will it take to fill the tank if both pipes are operating simultaneously?
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\n" ); document.write( "let x=time it will take to fill the tank if both pipes are operating simultaneously
\n" ); document.write( "1/x= work rate with both pipes are operating simultaneously
\n" ); document.write( "1/8=work rate of one of the pipes
\n" ); document.write( "1/12=work rate of the other pipe
\n" ); document.write( "sum of individual work rates=work rate working together
\n" ); document.write( " $\"1%2F8%2B1%2F12=1%2Fx\"$
\n" ); document.write( " $\"3%2F24%2B2%2F24=1%2Fx\"$
\n" ); document.write( " $\"5%2F24=1%2Fx\"$
\n" ); document.write( "x=24/5=4.8
\n" ); document.write( "time it will take to fill the tank if both pipes are operating simultaneously=4.8 hrs \n" ); document.write( "

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