document.write( "Question 263107: 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? \r
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document.write( "A. 12 minutes
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document.write( "B. 15 minutes
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document.write( "C. 21 minutes
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document.write( "D. 23 minutes
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document.write( "E. 28 minutes \r
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Algebra.Com's Answer #193838 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! x/30+x/45+x/90=1 \n" ); document.write( "3x+2x+x=90 \n" ); document.write( "6x=90 \n" ); document.write( "x=90/6=30/2=15 \n" ); document.write( "b) 15 minutes \n" ); document.write( " |