document.write( "Question 154822This question is from textbook elementary and intermediate algebra
\n" ); document.write( ": Can someone help me out? #88. Barn painting. Melanie can paint a certain barn by herself in x days. Her helper Melissa can paint the same barn by herself in 2x days. Write a rational expression for the fraction of the barn that they complete in one day by working together. Evaluate the expression fo x = 5.
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Algebra.Com's Answer #113990 by stanbon(75887)\"\" \"About 
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Melanie can paint a certain barn by herself in x days.
\n" ); document.write( "Melanie rate : 1/x job/day
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\n" ); document.write( "Her helper Melissa can paint the same barn by herself in 2x days.
\n" ); document.write( "Melissa rate : 1/(2x) job/day
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\n" ); document.write( "Write a rational expression for the fraction of the barn that they complete in one day by working together.
\n" ); document.write( "Together rate : (1/x) + 1/(2x) = (2+1)/(2x) = 3/(2x) job/day
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\n" ); document.write( " Evaluate the expression for x = 5.
\n" ); document.write( "3/(2*5) = 3/10 job/day
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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