document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=739940>Question 739940</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two companies working together can clear a parcel of land in 9 hours. Working alone it would take Company A 7 hours longer to clear the land than it would Company B. How long would it take Company B to clear the parcel of land alone? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #451414 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=451414\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Two companies working together can clear a parcel of land in 9 hours. Working alone it would take Company A 7 hours longer to clear the land than it would Company B. How long would it take Company B to clear the parcel of land alone?<BR>\n" );
document.write( "***<BR>\n" );
document.write( "x=amt of time company B can clear the land alone<BR>\n" );
document.write( "1/x= Its work rate<BR>\n" );
document.write( "x+7=amt of time company A can clear the land alone<BR>\n" );
document.write( "1/(x+7)=Its work rate<BR>\n" );
document.write( "9 hrs=amt of time they can clear the land working together<BR>\n" );
document.write( "1/9=their work rate<BR>\n" );
document.write( "..<BR>\n" );
document.write( "sum of individual work rates=work rate working together<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2Fx%2B1%2F%28x%2B7%29=1%2F9 ALIGN=MIDDLE  ALT=\"1%2Fx%2B1%2F%28x%2B7%29=1%2F9\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "LCD:9x(x+7)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9%28x%2B7%29%2B9x=x%28x%2B7%29 ALIGN=MIDDLE  ALT=\"9%28x%2B7%29%2B9x=x%28x%2B7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9x%2B63%2B9x=x%5E2%2B7x ALIGN=MIDDLE  ALT=\"9x%2B63%2B9x=x%5E2%2B7x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2-11x-63=0 ALIGN=MIDDLE  ALT=\"x%5E2-11x-63=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "solve for x using quadratic formula<BR>\n" );
document.write( "x&#8776;-4.16 (reject, x>0)<BR>\n" );
document.write( "or<BR>\n" );
document.write( "x&#8776;15.16<BR>\n" );
document.write( "amt of time company B can clear the land alone&#8776;15.16 hrs<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );