document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=335790>Question 335790</A>: <I><SPAN STYLE=\"word-break: break-all;\"> driving from town A to town D, you pass thru town B then town C.  town A to town B is 10 miles farther than from town B to town C.  town B to town C is 10 miles farther than from town C to town D. if town A is 390 miles from town D, how many mile is town A to town B??\r<BR>\n" );
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document.write( "A-------B-------C-------D<BR>\n" );
document.write( ".-------------------------.=390<BR>\n" );
document.write( "           <BR>\n" );
document.write( "390/3=130<BR>\n" );
document.write( "answer is 140 mi; just can't explain or show method; could you help? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #240803 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=240803\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> AB-Distance from A to B<BR>\n" );
document.write( "BC-Distance from B to C<BR>\n" );
document.write( "CD-Distance from C to D<BR>\n" );
document.write( "AD-Distance from A to D<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=AB=10%2BBC ALIGN=MIDDLE  ALT=\"AB=10%2BBC\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=BC=10%2BCD ALIGN=MIDDLE  ALT=\"BC=10%2BCD\"   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=AD=390 ALIGN=MIDDLE  ALT=\"AD=390\"   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=AD=AB%2BBC%2BCD ALIGN=MIDDLE  ALT=\"AD=AB%2BBC%2BCD\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "Substitute from above,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=AD=10%2BBC%2B10%2BCD%2BCD ALIGN=MIDDLE  ALT=\"AD=10%2BBC%2B10%2BCD%2BCD\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Substitute again for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=BC ALIGN=MIDDLE  ALT=\"BC\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=AD=10%2B%2810%2BCD%29%2B10%2BCD%2BCD=390 ALIGN=MIDDLE  ALT=\"AD=10%2B%2810%2BCD%29%2B10%2BCD%2BCD=390\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Solve for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=CD ALIGN=MIDDLE  ALT=\"CD\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3CD%2B30=390 ALIGN=MIDDLE  ALT=\"3CD%2B30=390\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3CD=360 ALIGN=MIDDLE  ALT=\"3CD=360\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=CD=120 ALIGN=MIDDLE  ALT=\"CD=120\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Now work backwards,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=BC=10%2BCD%7D%7D%0D%0A%7B%7B%7BBC=10%2B120=130 ALIGN=MIDDLE  ALT=\"BC=10%2BCD%7D%7D%0D%0A%7B%7B%7BBC=10%2B120=130\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=AB=10%2BBC ALIGN=MIDDLE  ALT=\"AB=10%2BBC\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=AB=10%2B130=highlight%28140%29 ALIGN=MIDDLE  ALT=\"AB=10%2B130=highlight%28140%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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