document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1065360>Question 1065360</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A towns old street sweeper can clean the streets in 60 hrs. Working  together with a new sweeper they can do the job in 15 hrs. How long would it take the new sweeper to do the job working alone? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #680507 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=680507\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Old sweeper's rate:<BR>\n" );
document.write( "[ 1 job ] / [ 60 hrs ]<BR>\n" );
document.write( "New sweeper's rate:<BR>\n" );
document.write( "[ 1 job ] / [ t hrs ]<BR>\n" );
document.write( "Their rate working together:<BR>\n" );
document.write( "[ 1 job ] / [ 15 hrs ]<BR>\n" );
document.write( "---------------------------<BR>\n" );
document.write( "Add their rates of working to get<BR>\n" );
document.write( "their rate working together<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1%2F60+%2B+1%2Ft+=+1%2F15+ ALIGN=MIDDLE  ALT=\"+1%2F60+%2B+1%2Ft+=+1%2F15+\"   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=+60t+ ALIGN=MIDDLE  ALT=\"+60t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+%2B+60+=+4t+ ALIGN=MIDDLE  ALT=\"+t+%2B+60+=+4t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3t+=+60+ ALIGN=MIDDLE  ALT=\"+3t+=+60+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+=+20+ ALIGN=MIDDLE  ALT=\"+t+=+20+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "The new sweeper does the job in 20 hrs<BR>\n" );
document.write( "working alone<BR>\n" );
document.write( "--------------------<BR>\n" );
document.write( "check:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1%2F60+%2B+1%2F20+=+1%2F15+ ALIGN=MIDDLE  ALT=\"+1%2F60+%2B+1%2F20+=+1%2F15+\"   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=+60+ ALIGN=MIDDLE  ALT=\"+60+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1+%2B+3+=+4+ ALIGN=MIDDLE  ALT=\"+1+%2B+3+=+4+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+4+=+4+ ALIGN=MIDDLE  ALT=\"+4+=+4+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "OK </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );