document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=182495>Question 182495</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a homeowner estimates that it will take her 9 days to roof her house. A professional roofer estimates that he could roof the house in 4 days. how long will it take if the homeowner helps the roofer? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #136983 by </B><A HREF=/tutors/aboutme.mpl?userid=HyperBrain><B>HyperBrain(694)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=HyperBrain><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=136983\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x=no. of days it will take the two to finish the job.<BR>\n" );
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document.write( "After x days, the homeowner has done x/9 of the job, while the roofer has done x/4 of the job. Furthermore,\r<BR>\n" );
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document.write( "(x/4)+(x/9)=1<BR>\n" );
document.write( "multiply both sides by 36.<BR>\n" );
document.write( "9x+4x=36<BR>\n" );
document.write( "13x=36<BR>\n" );
document.write( "x=36/13=2 10/13 days\r<BR>\n" );
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