document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=888578>Question 888578</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Trisha can mow a certain lawn in 40 minutes. Joe can mow the same lawn in 15 minutes. How long will it take them (to the nearest minute) to mow the lawn if they work together.? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #537485 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=537485\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Trisha's rate:<BR>\n" );
document.write( "( 1 lawn / 40 min )<BR>\n" );
document.write( "Joe's rate:<BR>\n" );
document.write( "( 1 lawn / 15 min )<BR>\n" );
document.write( "Add their rates of mowing to get<BR>\n" );
document.write( "their rate mowing together<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+ ALIGN=MIDDLE  ALT=\"+t+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = time in minutes to mow<BR>\n" );
document.write( "lawn<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1%2F40+%2B+1%2F15+=+1%2Ft+ ALIGN=MIDDLE  ALT=\"+1%2F40+%2B+1%2F15+=+1%2Ft+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Multiply both sides by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+120t+ ALIGN=MIDDLE  ALT=\"+120t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3t+%2B+8t+=+120+ ALIGN=MIDDLE  ALT=\"+3t+%2B+8t+=+120+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+11t+=+120+ ALIGN=MIDDLE  ALT=\"+11t+=+120+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+=+10.91+ ALIGN=MIDDLE  ALT=\"+t+=+10.91+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Working together, it will take them 11 minutes<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );