document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1010956>Question 1010956</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi,\r<BR>\n" );
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document.write( "Thank you for answering my question in advance.\r<BR>\n" );
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document.write( "An airplane flies 355 miles to city A. Then, with better winds it continues onto city B, 448 miles from A, at a speed 15.8 mi/h greater than the first leg of the trip. The total flying time was 5.20 hrs. Find the speed at which the plane traveled to city A.  \r<BR>\n" );
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document.write( "Thank you </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #626457 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=626457\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+s+ ALIGN=MIDDLE  ALT=\"+s+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = plane's speed in mi/hr going to A<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+ ALIGN=MIDDLE  ALT=\"+t+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = plane's time in hrs going to A<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+s+%2B+15.8+ ALIGN=MIDDLE  ALT=\"+s+%2B+15.8+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = plane's speed in mi/hr going to B<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5.2+-+t+ ALIGN=MIDDLE  ALT=\"+5.2+-+t+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = plane's time in hrs going to B<BR>\n" );
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document.write( "Plane's equation going to A:<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+355+=+s%2At+ ALIGN=MIDDLE  ALT=\"+355+=+s%2At+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Plane's equation going to B:<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+448+=+%28+s+%2B+15.8+%29%2A%28+5.2+-+t+%29+ ALIGN=MIDDLE  ALT=\"+448+=+%28+s+%2B+15.8+%29%2A%28+5.2+-+t+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-------------------------------<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+=+355%2Fs+ ALIGN=MIDDLE  ALT=\"+t+=+355%2Fs+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Substitute this into (2)<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+448+=+%28+s+%2B+15.8+%29%2A%28+5.2+-355%2Fs+%29+ ALIGN=MIDDLE  ALT=\"+448+=+%28+s+%2B+15.8+%29%2A%28+5.2+-355%2Fs+%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=+448+=+5.2s+%2B+82.16+-+355+-+5609%2Fs+ ALIGN=MIDDLE  ALT=\"+448+=+5.2s+%2B+82.16+-+355+-+5609%2Fs+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+720.84+=+5.2s+-+5609%2Fs+ ALIGN=MIDDLE  ALT=\"+720.84+=+5.2s+-+5609%2Fs+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+720.84s+=+5.2s%5E2+-+5609+ ALIGN=MIDDLE  ALT=\"+720.84s+=+5.2s%5E2+-+5609+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5.2s%5E2+-+720.84+-+5609+=+0+ ALIGN=MIDDLE  ALT=\"+5.2s%5E2+-+720.84+-+5609+=+0+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+s%5E2+-+138.623s+-+1078.654+=+0+ ALIGN=MIDDLE  ALT=\"+s%5E2+-+138.623s+-+1078.654+=+0+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "You can solve with quadratic formula. The numbers<BR>\n" );
document.write( "are really strange, so check my math. I think my<BR>\n" );
document.write( "method is good. Another opinion would be good too.  </SPAN>\n" );
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