document.write( "Question 782705: Two men can paint a fence in X hours and (X + 1) hours respectively. Find the time it will take the two men to paint the fence together. \n" ); document.write( "
Algebra.Com's Answer #476491 by stanbon(75887)\"\" \"About 
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Two men can paint a fence in X hours and (X + 1) hours respectively. Find the time it will take the two men to paint the fence together.
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\n" ); document.write( "1st man rate:: 1/x job/hr
\n" ); document.write( "2nd man rate:: 1/(x+1) job/hr
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\n" ); document.write( "Together rate: 1/k job/hr
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\n" ); document.write( "Equation:
\n" ); document.write( "rate + rate = together rate
\n" ); document.write( "1/x + 1/(x+1) = 1/k
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\n" ); document.write( "k(x+1) + k(x) = x(x+1)
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\n" ); document.write( "k[x+1+x] = x^2+x
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\n" ); document.write( "k = (x^2+x)/(2x+1) hrs (time to do the job together)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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