document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=25656>Question 25656</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Nancy takes an hour and a half to rake the lawn. But it takes her only 40 minutes if her sister rakes too. How long does it take the sister to rake the lawn alone?<BR>\n" );
document.write( "Answer:  l hour and 12 minutes. BUT HOW DO I GET THAT!! Been trying for 3 days!<BR>\n" );
document.write( "THANKS </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #13763 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=13763\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Work done = (rate)(time)<BR>\n" );
document.write( "Nancy rate is 1/(3/2)=(2/3)job/hr.<BR>\n" );
document.write( "Let Sister's time to do the job be \"x\"; then her rate is 1/x.<BR>\n" );
document.write( "Note that 40min.= 2/3 hr.<BR>\n" );
document.write( "EQUATION:<BR>\n" );
document.write( "Working together their rate is (2/3+1/x)job/hr.<BR>\n" );
document.write( "Amount of time to do job together is 2/3 hr.<BR>\n" );
document.write( "(2/3 + 1/x)(2/3) = 1<BR>\n" );
document.write( "(2/3 + 1/x)= 3/2<BR>\n" );
document.write( "(2x+3)/3x =3/2<BR>\n" );
document.write( "4x+6=9x<BR>\n" );
document.write( " 5x=6<BR>\n" );
document.write( "  x=1 1/5 = 1hr + (1/5)hr. = 1 hr. + 12 min.\r<BR>\n" );
document.write( "\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.   </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );