document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=760013>Question 760013</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please help me with this problem ): I have no idea where to begin and how to solve this. help! ): ): \r<BR>\n" );
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document.write( "Sarah can build a fence in 9 hours. Joe can do the same in 6 hours. How long would it take them working together, to build the fence?<BR>\n" );
document.write( "t=time together  <BR>\n" );
document.write( "1=the completed job <BR>\n" );
document.write( "t/9=fraction of fence built by Sarah in t hours  <BR>\n" );
document.write( "t/6=fraction of fence built by Joe in t hours.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #462356 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=462356\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Build a Fence is 1 job.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R%2At=j ALIGN=MIDDLE  ALT=\"R%2At=j\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "R is rate in jobs per hour<BR>\n" );
document.write( "t is time in hours<BR>\n" );
document.write( "j is how many jobs.\r<BR>\n" );
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document.write( "Work in units of jobs per hour.<BR>\n" );
document.write( "Sarah: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F9 ALIGN=MIDDLE  ALT=\"1%2F9\"   DISABLED_style= \"max-width:90%; height:auto;\" > jobs per hour.<BR>\n" );
document.write( "Joe: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F6 ALIGN=MIDDLE  ALT=\"1%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" > jobs per hour.<BR>\n" );
document.write( "Combined rate of Sarah AND Joe: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2F6%2B1%2F9%29 ALIGN=MIDDLE  ALT=\"%281%2F6%2B1%2F9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > jobs per hour. </SPAN>\n" );
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