document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1055380>Question 1055380</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Jack and Jill can mow the park together in 10 hours. Jack and Joe can mow the same park together in 15 hours. jill and Joe can mow the same park together in 18 hours. Determine the number of hours it would take jill alone to mow the park. Express your answer as a common fraction reduced to lowest terms. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #670593 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=670593\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> [ rate of mowing ] = [ 1 park mowed ] / [ t hrs ]<BR>\n" );
document.write( "[ rate of mowing ] = [ R ]<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5Ba%5D+ ALIGN=MIDDLE  ALT=\"+R%5Ba%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = Jack's rate of mowing<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5Bb%5D+ ALIGN=MIDDLE  ALT=\"+R%5Bb%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = Jill's rate of mowing<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5Bc%5D+ ALIGN=MIDDLE  ALT=\"+R%5Bc%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = Joe's rate of mowing<BR>\n" );
document.write( "--------------------------------<BR>\n" );
document.write( "Add rates of mowing to get the rate mowing together<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5Ba%5D+%2B+R%5Bb%5D+=+1%2F10+ ALIGN=MIDDLE  ALT=\"+R%5Ba%5D+%2B+R%5Bb%5D+=+1%2F10+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5Ba%5D+%2B+R%5Bc%5D+=+1%2F15+ ALIGN=MIDDLE  ALT=\"+R%5Ba%5D+%2B+R%5Bc%5D+=+1%2F15+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(3) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5Bb%5D+%2B+R%5Bc%5D+=+1%2F18+ ALIGN=MIDDLE  ALT=\"+R%5Bb%5D+%2B+R%5Bc%5D+=+1%2F18+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "--------------------------------<BR>\n" );
document.write( "Add (1) and (3) and subtract (2)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5Ba%5D+%2B+2R%5Bb%5D+%2B+R%5Bc%5D+=+1%2F10+%2B+1%2F18+ ALIGN=MIDDLE  ALT=\"+R%5Ba%5D+%2B+2R%5Bb%5D+%2B+R%5Bc%5D+=+1%2F10+%2B+1%2F18+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+-R%5Ba%5D+-+R%5Bc%5D+=+-1%2F15+ ALIGN=MIDDLE  ALT=\"+-R%5Ba%5D+-+R%5Bc%5D+=+-1%2F15+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-------------------------------------<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2R%5Bb%5D+=+1%2F10+%2B+1%2F18+-+1%2F15+ ALIGN=MIDDLE  ALT=\"+2R%5Bb%5D+=+1%2F10+%2B+1%2F18+-+1%2F15+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5Bb%5D+=+1%2F20+%2B+1%2F36+-+1%2F30+ ALIGN=MIDDLE  ALT=\"+R%5Bb%5D+=+1%2F20+%2B+1%2F36+-+1%2F30+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5Bb%5D+=+9%2F180+%2B+5%2F180+-+6%2F180+ ALIGN=MIDDLE  ALT=\"+R%5Bb%5D+=+9%2F180+%2B+5%2F180+-+6%2F180+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5Bb%5D+=+8%2F180+ ALIGN=MIDDLE  ALT=\"+R%5Bb%5D+=+8%2F180+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5Bb%5D+=+2%2F45+ ALIGN=MIDDLE  ALT=\"+R%5Bb%5D+=+2%2F45+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5Bb%5D+=+1%2F%28%28+45%2F2+%29%29+ ALIGN=MIDDLE  ALT=\"+R%5Bb%5D+=+1%2F%28%28+45%2F2+%29%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "( This is [ 1 park mowed ] / [ 45/2 hrs ] )<BR>\n" );
document.write( "--------------------------------------------<BR>\n" );
document.write( "It will take Jill 45/2 hrs to mow the park alone<BR>\n" );
document.write( "--------------------------------------------<BR>\n" );
document.write( "check answer:<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5Ba%5D+%2B+R%5Bb%5D+=+1%2F10+ ALIGN=MIDDLE  ALT=\"+R%5Ba%5D+%2B+R%5Bb%5D+=+1%2F10+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5Ba%5D+%2B+2%2F45+=+1%2F10+ ALIGN=MIDDLE  ALT=\"+R%5Ba%5D+%2B+2%2F45+=+1%2F10+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5Ba%5D+=+9%2F90+-+4%2F90+ ALIGN=MIDDLE  ALT=\"+R%5Ba%5D+=+9%2F90+-+4%2F90+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5Ba%5D+=+5%2F90+ ALIGN=MIDDLE  ALT=\"+R%5Ba%5D+=+5%2F90+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5Ba%5D+=+1%2F18+ ALIGN=MIDDLE  ALT=\"+R%5Ba%5D+=+1%2F18+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "(3) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5Bb%5D+%2B+R%5Bc%5D+=+1%2F18+ ALIGN=MIDDLE  ALT=\"+R%5Bb%5D+%2B+R%5Bc%5D+=+1%2F18+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(3) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2%2F45+%2B+R%5Bc%5D+=+1%2F18+ ALIGN=MIDDLE  ALT=\"+2%2F45+%2B+R%5Bc%5D+=+1%2F18+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(3) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5Bc%5D+=+5%2F90+-+4%2F90+ ALIGN=MIDDLE  ALT=\"+R%5Bc%5D+=+5%2F90+-+4%2F90+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(3) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5Bc%5D+=+1%2F90+ ALIGN=MIDDLE  ALT=\"+R%5Bc%5D+=+1%2F90+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-----------------------------<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5Ba%5D+%2B+R%5Bc%5D+=+1%2F15+ ALIGN=MIDDLE  ALT=\"+R%5Ba%5D+%2B+R%5Bc%5D+=+1%2F15+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1%2F18+%2B+1%2F90+=+1%2F15+ ALIGN=MIDDLE  ALT=\"+1%2F18+%2B+1%2F90+=+1%2F15+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5%2F90+%2B+1%2F90+=+6%2F90+ ALIGN=MIDDLE  ALT=\"+5%2F90+%2B+1%2F90+=+6%2F90+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-----------------------------<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5Ba%5D+%2B+R%5Bb%5D+=+1%2F10+ ALIGN=MIDDLE  ALT=\"+R%5Ba%5D+%2B+R%5Bb%5D+=+1%2F10+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1%2F18+%2B+2%2F45+=+1%2F10+ ALIGN=MIDDLE  ALT=\"+1%2F18+%2B+2%2F45+=+1%2F10+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5%2F90+%2B+4%2F90+=+9%2F90+ ALIGN=MIDDLE  ALT=\"+5%2F90+%2B+4%2F90+=+9%2F90+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-----------------------------<BR>\n" );
document.write( "(3) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5Bb%5D+%2B+R%5Bc%5D+=+1%2F18+ ALIGN=MIDDLE  ALT=\"+R%5Bb%5D+%2B+R%5Bc%5D+=+1%2F18+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(3) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2%2F45+%2B+1%2F90+=+1%2F18+ ALIGN=MIDDLE  ALT=\"+2%2F45+%2B+1%2F90+=+1%2F18+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(3) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+4%2F90+%2B+1%2F90+=+5%2F90+ ALIGN=MIDDLE  ALT=\"+4%2F90+%2B+1%2F90+=+5%2F90+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-----------------------------<BR>\n" );
document.write( "OK\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " \r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );