document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=314426>Question 314426</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a marine platoon went on a 20 mile hike that took 6 hours to complete.  for the first 12 miles he hiked at a constant spped.  FOR THE LAST 8 MILES HE INCREASED HIS SPEED BY 1 MPH, FIND THE SPPED OF THE PLATOON ON THE LAST PART OF HIS HIKE. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #224799 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=224799\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Rate*Time=Distance<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+R1%2AT1=D1+ ALIGN=MIDDLE  ALT=\"+R1%2AT1=D1+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R1%2AT1=12 ALIGN=MIDDLE  ALT=\"R1%2AT1=12\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R2=R1%2B1 ALIGN=MIDDLE  ALT=\"R2=R1%2B1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28R1%2B1%29%2AT2=8 ALIGN=MIDDLE  ALT=\"%28R1%2B1%29%2AT2=8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "You also know that<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T1%2BT2=6 ALIGN=MIDDLE  ALT=\"T1%2BT2=6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "From above,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T1=+12%2FR1 ALIGN=MIDDLE  ALT=\"T1=+12%2FR1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T2+=+8%2F%28R1%2B1%29 ALIGN=MIDDLE  ALT=\"T2+=+8%2F%28R1%2B1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Substitute,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T1%2BT2=6 ALIGN=MIDDLE  ALT=\"T1%2BT2=6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+12%2FR1%2B8%2F%28R1%2B1%29=6 ALIGN=MIDDLE  ALT=\"+12%2FR1%2B8%2F%28R1%2B1%29=6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12%28R1%2B1%29%2B8R1=6R1%28R1%2B1%29 ALIGN=MIDDLE  ALT=\"12%28R1%2B1%29%2B8R1=6R1%28R1%2B1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12R1%2B12%2B8R1=6R1%5E2%2B6R1 ALIGN=MIDDLE  ALT=\"12R1%2B12%2B8R1=6R1%5E2%2B6R1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6R1%5E2-14R1-12=0 ALIGN=MIDDLE  ALT=\"6R1%5E2-14R1-12=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%286R1%2B4%29%28R1-3%29=0 ALIGN=MIDDLE  ALT=\"%286R1%2B4%29%28R1-3%29=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Two solutions but only positive solution makes sense in this problem.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R1-3=0 ALIGN=MIDDLE  ALT=\"R1-3=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R1=3 ALIGN=MIDDLE  ALT=\"R1=3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Then from above,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28R2=4%29 ALIGN=MIDDLE  ALT=\"highlight_green%28R2=4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );