document.write( "Question 384665: Joshua and Geraldine can finish cleaning the house in 2 hours. If it takes Joshua working alone 3 hours longer than it takes Geraldine working alone, how many hours will each need to finish the work alone? \n" ); document.write( "
Algebra.Com's Answer #272312 by mananth(16946)\"\" \"About 
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Joshua and Geraldine can finish cleaning the house in 2 hours. If it takes Joshua working alone 3 hours longer than it takes Geraldine working alone, how many hours will each need to finish the work alone?
\n" ); document.write( "...
\n" ); document.write( "Geraldine = xhours
\n" ); document.write( "Joshua x+3 hours
\n" ); document.write( "they both can do
\n" ); document.write( "...
\n" ); document.write( "\"%282x%2B3%29%2F%28x%5E2-3x%29\"
\n" ); document.write( "they will take \"%28x%5E2-3x%29%2F%282x%2B3%29\" to complete the job
\n" ); document.write( "..
\n" ); document.write( "\"%28x%5E2-3x%29%2F%282x%2B3%29=2\"
\n" ); document.write( "..
\n" ); document.write( "x^2-3x=2(2x+3)
\n" ); document.write( "x^2-3x=4x+6
\n" ); document.write( "x^2-3x-4x-6=0
\n" ); document.write( "x^2-7x-6=0
\n" ); document.write( "discriminant = 73
\n" ); document.write( "\"x1=%287%2Bsqrt73%29%2F%282%29\"
\n" ); document.write( "x1=7.77 hours
\n" ); document.write( "Geraldine\"%28highlight%287.77%29%29\"hours
\n" ); document.write( "Joshua\"%28highlight%2810.77%29%29\" hours
\n" ); document.write( "..
\n" ); document.write( "x2 will be negative so ignore
\n" ); document.write( "m.ananth@hotmail.ca
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