document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=945014>Question 945014</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Phyllis can rake our lawn in 50 minutes and I can do it in 40 minutes. If she rakes for five minutes before I join her, how long will take for us to finish? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #576232 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=576232\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Phyllis can rake our lawn in 50 minutes and I can do it in 40 minutes. If she rakes for five minutes before I join her, how long will take for us to finish?<BR>\n" );
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document.write( "General idea: rate*time = work done<BR>\n" );
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document.write( "Phyllis's rate:: 1/50 job/min<BR>\n" );
document.write( "My rate:: 1/40 job/min<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "work + work = work done<BR>\n" );
document.write( "(1/50)*5 + (1/40)x = 1<BR>\n" );
document.write( "40*5 + 50x = 40*50<BR>\n" );
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document.write( "200 + 50x = 2000<BR>\n" );
document.write( "50x = 1850<BR>\n" );
document.write( "x = 37 minutes (time for me to finish the job)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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