document.write( "Question 1121173: A water tank can be filled with a large inlet pipe and a small inlet pipe in three hours. The large inlet pipe alone can fll the tank in 2 hours less than the small inlet pipe alone. Find the time the tank can be filled by each pipe alone. \n" ); document.write( "
Algebra.Com's Answer #736946 by josmiceli(19441)\"\" \"About 
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\"+1%2Ft+%2B+1%2F+%28+t-2+%29+=+1%2F3+\"
\n" ); document.write( "( adding the rates to get a rate working together )
\n" ); document.write( "Multiply both sides by \"+t%2A%28+t-2+%29%2A3+\"
\n" ); document.write( "\"+3%2A%28+t-2+%29+%2B+3t+=+t%2A%28+t-2+%29+\"
\n" ); document.write( "\"+3t+-+6+%2B+3t+=+t%5E2+-+2t+\"
\n" ); document.write( "\"+t%5E2+-+8t+%2B+6+=+0+\"
\n" ); document.write( "Complete the square
\n" ); document.write( "\"+t%5E2+-+8t+%2B+16+=+-6+%2B+16+\"
\n" ); document.write( "\"+%28+t+-+4+%29%5E2+=+10+\"
\n" ); document.write( "\"+t+-+4+=+sqrt%28+10+%29+\"
\n" ); document.write( "\"+t+=+4+%2B+3.1623+\"
\n" ); document.write( "\"+t+=+7.1623+\"
\n" ); document.write( "And
\n" ); document.write( "\"+t+-+2+=+5.1623+\"
\n" ); document.write( "Large pipe fills tank in 5.1623 hrs
\n" ); document.write( "Small pipe fills tank in 7.1623 hrs
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