document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=413255>Question 413255</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Coach ran 4 km in 30 minutes. He ran the<BR>\n" );
document.write( "first 2 km at a constant speed that was twice <BR>\n" );
document.write( "the constant speed at which he ran the last 2 km.<BR>\n" );
document.write( "Coach ran the 3rd km at a speed of ? km/hr. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #290077 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=290077\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1st 2 km:<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2+=+r%5B1%5D%2At%5B1%5D ALIGN=MIDDLE  ALT=\"2+=+r%5B1%5D%2At%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "2nd 2 km:<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2+=+.5%2Ar%5B1%5D%2At%5B2%5D ALIGN=MIDDLE  ALT=\"2+=+.5%2Ar%5B1%5D%2At%5B2%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(3) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5B1%5D+%2B+t%5B2%5D+=+.5 ALIGN=MIDDLE  ALT=\"t%5B1%5D+%2B+t%5B2%5D+=+.5\"   DISABLED_style= \"max-width:90%; height:auto;\" > hr<BR>\n" );
document.write( "---------------------<BR>\n" );
document.write( "(3) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5B2%5D+=+.5+-+t%5B1%5D ALIGN=MIDDLE  ALT=\"t%5B2%5D+=+.5+-+t%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5B1%5D+=+2%2Fr%5B1%5D ALIGN=MIDDLE  ALT=\"t%5B1%5D+=+2%2Fr%5B1%5D\"   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=2+=+.5%2Ar%5B1%5D%2A%28.5+-+t%5B1%5D%29 ALIGN=MIDDLE  ALT=\"2+=+.5%2Ar%5B1%5D%2A%28.5+-+t%5B1%5D%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2+=+.5%2Ar%5B1%5D%2A%28.5+-+2%2Fr%5B1%5D%29 ALIGN=MIDDLE  ALT=\"2+=+.5%2Ar%5B1%5D%2A%28.5+-+2%2Fr%5B1%5D%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2+=+.25%2Ar%5B1%5D+-+1%29 ALIGN=MIDDLE  ALT=\"2+=+.25%2Ar%5B1%5D+-+1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=.25r%5B1%5D+=+3 ALIGN=MIDDLE  ALT=\".25r%5B1%5D+=+3\"   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%5B1%5D+=+12 ALIGN=MIDDLE  ALT=\"r%5B1%5D+=+12\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5B2%5D+=+.5r%5B1%5D ALIGN=MIDDLE  ALT=\"r%5B2%5D+=+.5r%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5B2%5D+=+6 ALIGN=MIDDLE  ALT=\"r%5B2%5D+=+6\"   DISABLED_style= \"max-width:90%; height:auto;\" > km/hr<BR>\n" );
document.write( "Coach ran the 3rd km at 6 km/hr<BR>\n" );
document.write( "check answer:<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5B1%5D+=+2%2Fr%5B1%5D ALIGN=MIDDLE  ALT=\"t%5B1%5D+=+2%2Fr%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5B1%5D+=+2%2F12 ALIGN=MIDDLE  ALT=\"t%5B1%5D+=+2%2F12\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5B1%5D+=+1%2F6 ALIGN=MIDDLE  ALT=\"t%5B1%5D+=+1%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(3) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5B1%5D+%2B+t%5B2%5D+=+.5 ALIGN=MIDDLE  ALT=\"t%5B1%5D+%2B+t%5B2%5D+=+.5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(3) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5B2%5D+=+3%2F6+-+1%2F6 ALIGN=MIDDLE  ALT=\"t%5B2%5D+=+3%2F6+-+1%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(3) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5B2%5D+=+1%2F3 ALIGN=MIDDLE  ALT=\"t%5B2%5D+=+1%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5B1%5D+%2B+t%5B2%5D+=+1%2F6+%2B+2%2F6 ALIGN=MIDDLE  ALT=\"t%5B1%5D+%2B+t%5B2%5D+=+1%2F6+%2B+2%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5B1%5D+%2B+t%5B2%5D+=+.5 ALIGN=MIDDLE  ALT=\"t%5B1%5D+%2B+t%5B2%5D+=+.5\"   DISABLED_style= \"max-width:90%; height:auto;\" > hr<BR>\n" );
document.write( "OK\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );