document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=358986>Question 358986</A>: <I><SPAN STYLE=\"word-break: break-all;\"> It takes 9 people 9 days to finish a project if they work 9 hours a day. If only 8 people work only 8 hours a day, how long would it take? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #256160 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=256160\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is a problem on inverse variation.  The no. of days D to finish the work is inversely proportional to the number of hours worked h and the number of people p working.  Thus <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=D+=+k%2F%28p%2Ah%29 ALIGN=MIDDLE  ALT=\"D+=+k%2F%28p%2Ah%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, where k is a proportionality constant.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9+=+k%2F%289%2A9%29+=+k%2F9%5E2 ALIGN=MIDDLE  ALT=\"9+=+k%2F%289%2A9%29+=+k%2F9%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >, so that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=k+=+9%5E3+=+729 ALIGN=MIDDLE  ALT=\"k+=+9%5E3+=+729\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "Then <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=D+=+729%2F%288%2A8%29+=+729%2F64+=+11.39 ALIGN=MIDDLE  ALT=\"D+=+729%2F%288%2A8%29+=+729%2F64+=+11.39\"   DISABLED_style= \"max-width:90%; height:auto;\" > hours.<BR>\n" );
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