document.write( "Question 418676: one pipe fills a tank in 8 minutes, another pipe can fill it in 12 minutes. find the time taken to fill the tank when both pipes are running together? \n" ); document.write( "
Algebra.Com's Answer #292943 by nerdybill(7384)\"\" \"About 
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one pipe fills a tank in 8 minutes, another pipe can fill it in 12 minutes. find the time taken to fill the tank when both pipes are running together?\r
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\n" ); document.write( "Let x = time (minutes) it takes for both
\n" ); document.write( "then
\n" ); document.write( "x(1/8 + 1/12) = 1
\n" ); document.write( "multiplying both sides by 24:
\n" ); document.write( "x(3 + 2) = 24
\n" ); document.write( "5x = 24
\n" ); document.write( "x = 24/5
\n" ); document.write( "x = 4.8 minutes
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