document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=79765>Question 79765</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0073268623/algebrahomeworkh>Elementary and Intermediate Algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> 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.  Ebaluate the expression fo x = 5 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #57241 by </B><A HREF=/tutors/aboutme.mpl?userid=ptaylor><B>ptaylor(2198)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ptaylor><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=ptaylor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=57241\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "Melanie paints barns at the rate of 1/x barns per day\r<BR>\n" );
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document.write( "Melissa paints barns at the rate of 1/2x barns per day\r<BR>\n" );
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document.write( "Together they paint barns at the rate of 1/x+1/2x barns per day\r<BR>\n" );
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document.write( "1/x=2/2x\r<BR>\n" );
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document.write( "So in one day they can paint 2/2x+1/2x=3/2x of the barn\r<BR>\n" );
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document.write( "If x=5, then they can paint 3/10 of the barn in 1 day\r<BR>\n" );
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document.write( "Hope this helps----ptaylor<BR>\n" );
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