document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=937976>Question 937976</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Alan can sweep a porch in 9 minutes. Bill can sweep the same porch in 14 minutes. How long will it take them to sweep the same porch together? The answer is 5.48 minutes. I get 5.75 minutes. How do I set up the problem?<BR>\n" );
document.write( "Thank You </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #571334 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39616)</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=571334\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Alan and Bill.  Let their times to do one job alone be A and B.   Their individual rates are then 1/A and 1/B in unit of PORCHES per MINUTE.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "The amount of the work to be done using Alan and Bill working at the same time together is 1, for ONE PORCH or ONE JOB. \r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Let t be the time in minutes for Alan and Bill to sweep the one porch.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2FA%2B1%2FB%29t=1 ALIGN=MIDDLE  ALT=\"%281%2FA%2B1%2FB%29t=1\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Assumption may be that you just made a mistake in your steps.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28B%2FAB%2BA%2FAB%29t=1 ALIGN=MIDDLE  ALT=\"%28B%2FAB%2BA%2FAB%29t=1\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%28B%2BA%29%2F%28AB%29%29t=1 ALIGN=MIDDLE  ALT=\"%28%28B%2BA%29%2F%28AB%29%29t=1\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28t=%28AB%29%2F%28A%2BB%29%29 ALIGN=MIDDLE  ALT=\"highlight%28t=%28AB%29%2F%28A%2BB%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, excuse the simple skipped step.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Plug in the given values, A=9, B=14, and evaluate t.\r<BR>\n" );
document.write( "\n" );
document.write( "Intermediate step should be <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=126%2F23 ALIGN=MIDDLE  ALT=\"126%2F23\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%285%2611%2F23%29 ALIGN=MIDDLE  ALT=\"highlight%285%2611%2F23%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "5.48 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );