document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=903859>Question 903859</A>: <I><SPAN STYLE=\"word-break: break-all;\"> To finish construction at a site, it would take 4 bulldozers and 3 shovels 2 days, and it take 5 bulldozers and 1 shovel 3 days. How many days does it take 1 bulldozers and 1 shovel? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #548359 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=548359\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Call the construction 1 job<BR>\n" );
document.write( "--------------------------<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5B1%5D+ ALIGN=MIDDLE  ALT=\"+R%5B1%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = the rate of working<BR>\n" );
document.write( "of a bulldozer in jobs / hour<BR>\n" );
document.write( "--------------------------<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5B2%5D+ ALIGN=MIDDLE  ALT=\"+R%5B2%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = the rate of working<BR>\n" );
document.write( "of a shovel in jobs / hour<BR>\n" );
document.write( "--------------------------<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+4R%5B1%5D+%2B+3R%5B2%5D+=+1%2F2+ ALIGN=MIDDLE  ALT=\"+4R%5B1%5D+%2B+3R%5B2%5D+=+1%2F2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5R%5B1%5D+%2B+1%2AR%5B2%5D+=+1%2F3+ ALIGN=MIDDLE  ALT=\"+5R%5B1%5D+%2B+1%2AR%5B2%5D+=+1%2F3+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "--------------------------<BR>\n" );
document.write( "Multiply both sides of (2) by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3+ ALIGN=MIDDLE  ALT=\"+3+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and subtract (1) from (2)<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+15R%5B1%5D+%2B+3R%5B2%5D+=+1+ ALIGN=MIDDLE  ALT=\"+15R%5B1%5D+%2B+3R%5B2%5D+=+1+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+-4R%5B1%5D+-+3R%5B2%5D+=+-1%2F2+ ALIGN=MIDDLE  ALT=\"+-4R%5B1%5D+-+3R%5B2%5D+=+-1%2F2+\"   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=+11R%5B1%5D+=+1%2F2+ ALIGN=MIDDLE  ALT=\"+11R%5B1%5D+=+1%2F2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R%5B1%5D+=+1%2F22+ ALIGN=MIDDLE  ALT=\"+R%5B1%5D+=+1%2F22+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5R%5B1%5D+%2B+1%2AR%5B2%5D+=+1%2F3+ ALIGN=MIDDLE  ALT=\"+5R%5B1%5D+%2B+1%2AR%5B2%5D+=+1%2F3+\"   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%2F22+%2B+1%2AR%5B2%5D+=+1%2F3+ ALIGN=MIDDLE  ALT=\"+5%2F22+%2B+1%2AR%5B2%5D+=+1%2F3+\"   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%5B2%5D+=+1%2F3+-+5%2F22+ ALIGN=MIDDLE  ALT=\"+R%5B2%5D+=+1%2F3+-+5%2F22+\"   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%5B2%5D+=+22%2F66+-+15%2F66+ ALIGN=MIDDLE  ALT=\"+R%5B2%5D+=+22%2F66+-+15%2F66+\"   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%5B2%5D+=+7%2F66+ ALIGN=MIDDLE  ALT=\"+R%5B2%5D+=+7%2F66+\"   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=+R%5B1%5D+%2B+R%5B2%5D+=+1%2Ft+ ALIGN=MIDDLE  ALT=\"+R%5B1%5D+%2B+R%5B2%5D+=+1%2Ft+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3%2F66+%2B+7%2F66+=+1%2Ft+ ALIGN=MIDDLE  ALT=\"+3%2F66+%2B+7%2F66+=+1%2Ft+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+10%2F66+=+1%2Ft+ ALIGN=MIDDLE  ALT=\"+10%2F66+=+1%2Ft+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+=+66%2F10+ ALIGN=MIDDLE  ALT=\"+t+=+66%2F10+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+=+6.6+ ALIGN=MIDDLE  ALT=\"+t+=+6.6+\"   DISABLED_style= \"max-width:90%; height:auto;\" > days<BR>\n" );
document.write( "------------------<BR>\n" );
document.write( "It takes 1 bulldozer and 1 shovel 6.6 days<BR>\n" );
document.write( "check:<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+4R%5B1%5D+%2B+3R%5B2%5D+=+1%2F2+ ALIGN=MIDDLE  ALT=\"+4R%5B1%5D+%2B+3R%5B2%5D+=+1%2F2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+4%2A%283%2F66%29+%2B+3%2A%287%2F66%29+=+1%2F2+ ALIGN=MIDDLE  ALT=\"+4%2A%283%2F66%29+%2B+3%2A%287%2F66%29+=+1%2F2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+12%2F66+%2B+21%2F66+=+33%2F66+ ALIGN=MIDDLE  ALT=\"+12%2F66+%2B+21%2F66+=+33%2F66+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+33%2F66+=+33%2F66+ ALIGN=MIDDLE  ALT=\"+33%2F66+=+33%2F66+\"   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=+5R%5B1%5D+%2B+1%2AR%5B2%5D+=+1%2F3+ ALIGN=MIDDLE  ALT=\"+5R%5B1%5D+%2B+1%2AR%5B2%5D+=+1%2F3+\"   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%2A%283%2F66%29+%2B+1%2A%287%2F66%29+=+1%2F3+ ALIGN=MIDDLE  ALT=\"+5%2A%283%2F66%29+%2B+1%2A%287%2F66%29+=+1%2F3+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+15%2F66+%2B+7%2F66+=+22%2F66+ ALIGN=MIDDLE  ALT=\"+15%2F66+%2B+7%2F66+=+22%2F66+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+22%2F66+=+22%2F66+ ALIGN=MIDDLE  ALT=\"+22%2F66+=+22%2F66+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Ok<BR>\n" );
document.write( "Hope I got it\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );