document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1196999>Question 1196999</A>: <I><SPAN STYLE=\"word-break: break-all;\">  A 810-mile, 7-hour plane trip was flown at two speeds. For the first part of the trip, the average speed was 111 mph. For the remainder of the trip, the average speed was 122 mph. How long (in hours) did the plane fly at each speed? \r<BR>\n" );
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document.write( "111 mph=____Hr.?<BR>\n" );
document.write( "122 mph=____HR? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #830069 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=830069\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A D mile, T hour plane trip was flown at two speeds. For the first part of the trip, <BR>\n" );
document.write( "the average speed was L mph. For the remainder of the trip, the average speed was G mph. <BR>\n" );
document.write( "How long (in hours) did the plane fly at each speed?\r<BR>\n" );
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document.write( "               SPEEDS         TIMES       DISTANCES\r\n" );
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document.write( "LOWER SPEED       L             T-x        L(T-x)\r\n" );
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document.write( "GREATER SPD.      G              x         Gx\r\n" );
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document.write( "TOTAL                            T           D\r\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28L%28T-x%29%2BGx=D%29 ALIGN=MIDDLE  ALT=\"highlight_green%28L%28T-x%29%2BGx=D%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=LT-Lx%2BGx=D ALIGN=MIDDLE  ALT=\"LT-Lx%2BGx=D\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28G-L%29x%2BLT=D ALIGN=MIDDLE  ALT=\"%28G-L%29x%2BLT=D\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28G-L%29x=D-LT ALIGN=MIDDLE  ALT=\"%28G-L%29x=D-LT\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28x=%28D-LT%29%2F%28G-L%29%29 ALIGN=MIDDLE  ALT=\"highlight_green%28x=%28D-LT%29%2F%28G-L%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Your example gives <BR>\n" );
document.write( "D=810<BR>\n" );
document.write( "L=111<BR>\n" );
document.write( "G=122<BR>\n" );
document.write( "T=7\r<BR>\n" );
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document.write( "Substitute and evaluate the unknown time, x.<BR>\n" );
document.write( "Use it to evaluate T-x. </SPAN>\n" );
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