document.write( "Question 271610: Jim can fill a pool carrying buckets of water in 30 minutes. Sue can do the same job in 45 minutes. Tony can do the same job in 1 ½ hours. How quickly can all three fill the pool together?
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Algebra.Com's Answer #198808 by unlockmath(1688)\"\" \"About 
You can put this solution on YOUR website!
We can set up the following equation:
\n" ); document.write( "(1/30)+(1/45)+(1/90)=1/x Multiply 90x to get:
\n" ); document.write( "3x+2x+x=90 Combine like terms:
\n" ); document.write( "6x=90 Divide each side by 6 to get:
\n" ); document.write( "x=15
\n" ); document.write( "There we go. 15 minutes. Working together pays off.
\n" ); document.write( "RJ
\n" ); document.write( "There's a book you might check out.
\n" ); document.write( "www.math-unlock.com
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