document.write( "Question 372353: I don't know how to set up the equation for this word problem...\r
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document.write( "My cat Archimedes can rid my garage of mice twice as fast as my neighbor's cat, Pythagoras. If they joined forces, they can clear a garage in a mere two hours. In how many hours does it take for each of these felines to clear a garage of mice working alone?\r
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document.write( "I think the known values are:\r
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document.write( "Pythagoras's rate = x
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document.write( "Archimedes' rate = 2x
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document.write( "Total time working together = 2 hours\r
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document.write( "Thank you!
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Algebra.Com's Answer #265234 by mananth(16949) You can put this solution on YOUR website! Pythagoras's rate = x \n" ); document.write( "Archimedes' rate = 2x \n" ); document.write( "Total time working together = 2 hours \n" ); document.write( "... \n" ); document.write( "I will continue your steps \n" ); document.write( ".. \n" ); document.write( "Pythagoras's can do 1/x of the job in 1 hour \n" ); document.write( "Archimedes' can do 1/ 2x of the job in 1 hour. \n" ); document.write( "... \n" ); document.write( "together they can do 1/x + 1/2x of the job in 1 hour \n" ); document.write( "(2+1)/2x \n" ); document.write( "=2+1/2x \n" ); document.write( "=3/2x \n" ); document.write( "So they will take 2x/3 hours to do the job. = 2 \n" ); document.write( "2x/3=2 \n" ); document.write( "multiply by 3 \n" ); document.write( "2x = 6 \n" ); document.write( "/2 \n" ); document.write( "x=3 Pythagoras's time \n" ); document.write( "2x= 6 hours = Archimedes \n" ); document.write( ".. \n" ); document.write( "so you know how many hours they take \n" ); document.write( "... \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " \n" ); document.write( " |