document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1009451>Question 1009451</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two planes just took off from Milwaukee, WI.  The first plane is traveling 3.5 times as fast as the second plane.  After traveling in the same direction for 6 hours, they are 1620 miles apart.  What is the average speed of each plane?  (Hint:  Since they are traveling in the same direction, the distance between them will be the difference of their distances.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #627607 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=627607\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=D=Rt ALIGN=MIDDLE  ALT=\"D=Rt\"   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=D%5B1%5D=3.5R%2At ALIGN=MIDDLE  ALT=\"D%5B1%5D=3.5R%2At\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=D%5B2%5D=R%2At ALIGN=MIDDLE  ALT=\"D%5B2%5D=R%2At\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "When <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=6 ALIGN=MIDDLE  ALT=\"t=6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=D%5B1%5D-D%5B2%5D=1620 ALIGN=MIDDLE  ALT=\"D%5B1%5D-D%5B2%5D=1620\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Substituting,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3.5R%286%29-R%286%29=1620 ALIGN=MIDDLE  ALT=\"3.5R%286%29-R%286%29=1620\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=21R-6R=1620 ALIGN=MIDDLE  ALT=\"21R-6R=1620\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15R=1620 ALIGN=MIDDLE  ALT=\"15R=1620\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R=108 ALIGN=MIDDLE  ALT=\"R=108\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=mph ALIGN=MIDDLE  ALT=\"mph\"   DISABLED_style= \"max-width:90%; height:auto;\" ><--- Average speed of second plane<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3.5R=378 ALIGN=MIDDLE  ALT=\"3.5R=378\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=mph ALIGN=MIDDLE  ALT=\"mph\"   DISABLED_style= \"max-width:90%; height:auto;\" > <--- Average speed of first plane </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );