document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=721140>Question 721140</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If it takes 3 people 4 hours to paint a room. How long will it take 2 people to paint the same room?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #442235 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</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=442235\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Assuming each person works at an equal rate, the rates are additive when they work together.  Let r be the rate at which any one worker works.  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3r%2A4=1 ALIGN=MIDDLE  ALT=\"3r%2A4=1\"   DISABLED_style= \"max-width:90%; height:auto;\" >, or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2A4 ALIGN=MIDDLE  ALT=\"3%2A4\"   DISABLED_style= \"max-width:90%; height:auto;\" > is that one job in the 4 hour time period.  \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3r%2A4%2F3=1%2F3 ALIGN=MIDDLE  ALT=\"3r%2A4%2F3=1%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%2A4=1%2F3 ALIGN=MIDDLE  ALT=\"r%2A4=1%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%2A4%2F4=1%2F%283%2A4%29 ALIGN=MIDDLE  ALT=\"r%2A4%2F4=1%2F%283%2A4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28r=1%2F12%29 ALIGN=MIDDLE  ALT=\"highlight%28r=1%2F12%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > The Rate of ONE worker.\r<BR>\n" );
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document.write( "How long for TWO workers together to do the job?  <BR>\n" );
document.write( "Together , their combined rate is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F12%2B1%2F12=1%2F6 ALIGN=MIDDLE  ALT=\"1%2F12%2B1%2F12=1%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" > jobs per hour, ... OR...<BR>\n" );
document.write( "6 hours to paint the room (one job). </SPAN>\n" );
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