document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=941108>Question 941108</A>: <I><SPAN STYLE=\"word-break: break-all;\"> It takes 49 minutes for 4 people to paint 7 walls.\r<BR>\n" );
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document.write( "How many minutes does it take 9 people to paint 9 walls? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #573659 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=573659\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let r be the one-person work rate.<BR>\n" );
document.write( "n*r is the rate for n people working.<BR>\n" );
document.write( "Use t as minutes.\r<BR>\n" );
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document.write( "Key idea is RT=J for rate, time, job<BR>\n" );
document.write( "Uniform Rates for doing a job.\r<BR>\n" );
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document.write( "The amount of work is in unit of WALLS.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%284r%2A49=7%2C9r%2At=9%29 ALIGN=MIDDLE  ALT=\"system%284r%2A49=7%2C9r%2At=9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Examine that system so you understand how it makes sense.<BR>\n" );
document.write( "Simplify, and solve for t. </SPAN>\n" );
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