document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=663482>Question 663482</A>: <I><SPAN STYLE=\"word-break: break-all;\"> It takes Sarah 15 min to pick apples from the tree in her backyard. Lisa takes 25 min. How long will it take them working together? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #412788 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=412788\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> It takes Sarah 15 min to pick apples from the tree in her backyard. Lisa takes 25 min. How long will it take them working together?<BR>\n" );
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document.write( "Sarah rate: 1/15 job/min<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Lisa rate: 1/25 job/min<BR>\n" );
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document.write( "Together rate: 1/x job/min<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "rate + rate = together rate<BR>\n" );
document.write( "1/15 + 1/25 = 1/x<BR>\n" );
document.write( "25x + 15x = 15*25<BR>\n" );
document.write( "40x = 15*25<BR>\n" );
document.write( "x = (3/8)25 = 9 3/8 minutes (time to do the job together)<BR>\n" );
document.write( "===================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );