document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=747253>Question 747253</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two companies working together can clear a parcel of land in 13 hours. Working alone, it would take company A 10 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" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #454787 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=454787\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Add their rates of working to get their rate working 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;\" > = B's time in hours to clear the parcel of land<BR>\n" );
document.write( "given:<BR>\n" );
document.write( "B's rate:<BR>\n" );
document.write( "( 1 parcel cleared ) / ( t hrs )<BR>\n" );
document.write( "A's rate:<BR>\n" );
document.write( "( 1 parcel cleared ) / ( t + 10 hrs )<BR>\n" );
document.write( "Their rate working together:<BR>\n" );
document.write( "( 1 parcel cleared  /  t hrs ) + ( 1 parcel cleared  /  t + 10 hrs ) = ( 1 parcel cleared / 13 hrs )<BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1%2Ft+%2B+1%2F%28+t+%2B+10+%29+=+1%2F13+ ALIGN=MIDDLE  ALT=\"+1%2Ft+%2B+1%2F%28+t+%2B+10+%29+=+1%2F13+\"   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=+t%2A%28+t%2B10+%29%2A13+ ALIGN=MIDDLE  ALT=\"+t%2A%28+t%2B10+%29%2A13+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+13%2A%28+t+%2B+10+%29+%2B+13t+=+t%2A%28+t+%2B+10+%29+ ALIGN=MIDDLE  ALT=\"+13%2A%28+t+%2B+10+%29+%2B+13t+=+t%2A%28+t+%2B+10+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+13t+%2B+130+%2B+13t+=+t%5E2+%2B+10t+ ALIGN=MIDDLE  ALT=\"+13t+%2B+130+%2B+13t+=+t%5E2+%2B+10t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t%5E2+-16t+-+130+=+0+ ALIGN=MIDDLE  ALT=\"+t%5E2+-16t+-+130+=+0+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Complete the square<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t%5E2+-+16t+=+130+ ALIGN=MIDDLE  ALT=\"+t%5E2+-+16t+=+130+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t%5E2+-+16t+%2B+%28-16%2F2%29%5E2+=+130+%2B+%28-16%2F2%29%5E2+ ALIGN=MIDDLE  ALT=\"+t%5E2+-+16t+%2B+%28-16%2F2%29%5E2+=+130+%2B+%28-16%2F2%29%5E2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t%5E2+-16t+%2B+64+=+130+%2B+64+ ALIGN=MIDDLE  ALT=\"+t%5E2+-16t+%2B+64+=+130+%2B+64+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+t+-+8+%29%5E2+=+194+ ALIGN=MIDDLE  ALT=\"+%28+t+-+8+%29%5E2+=+194+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Take square root of both sides<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+-+8+=+13.928+ ALIGN=MIDDLE  ALT=\"+t+-+8+=+13.928+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+=+21.928+ ALIGN=MIDDLE  ALT=\"+t+=+21.928+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.928%2A60+=+55.7+ ALIGN=MIDDLE  ALT=\"+.928%2A60+=+55.7+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Working alone, B takes 21 hrs 56 min<BR>\n" );
document.write( "check:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1%2Ft+%2B+1%2F%28+t+%2B+10+%29+=+1%2F13+ ALIGN=MIDDLE  ALT=\"+1%2Ft+%2B+1%2F%28+t+%2B+10+%29+=+1%2F13+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1%2F21.928+%2B+1%2F%28+21.928+%2B+10+%29+=+1%2F13+ ALIGN=MIDDLE  ALT=\"+1%2F21.928+%2B+1%2F%28+21.928+%2B+10+%29+=+1%2F13+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.0456+%2B+.0313+=+.0769+ ALIGN=MIDDLE  ALT=\"+.0456+%2B+.0313+=+.0769+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.0769+=+.0769+ ALIGN=MIDDLE  ALT=\"+.0769+=+.0769+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "OK\r<BR>\n" );
document.write( "\n" );
document.write( "  \r<BR>\n" );
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