document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=903622>Question 903622</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi there, the following problem really has me stumped.  Could you help me solve it, please?\r<BR>\n" );
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document.write( "A jet plane, flying 80mph faster than a propeller plane, travels 3960 miles in 2 hours less time than the propeller plane takes to fly the same distance.  How fast does each plane fly? \r<BR>\n" );
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document.write( "I ended up solving for \"r,\" in the d=rt formula, and got propeller plane flies at 1956 mph and jet plane 2036 mph. Both answers, however, are incorrect.\r<BR>\n" );
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document.write( "Answers cannot have decimals, must either be rounded or fraction form (it's an online homework system).\r<BR>\n" );
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document.write( "Thank you!<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #548185 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=548185\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Variable assignments could vary but here in use is r for speed of the propeller plane,<BR>\n" );
document.write( "t for the time for the propeller plane to do the trip.\r<BR>\n" );
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document.write( "______________speed____________time__________distance<BR>\n" );
document.write( "JET___________ r+80____________t-2___________3960<BR>\n" );
document.write( "PROPLL__________r_______________t____________3960\r<BR>\n" );
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document.write( "The rule for uniform travel rates is RT=D for rate time distance;<BR>\n" );
document.write( "The system of equations to solve is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28system%28%28r%2B80%29%28t-2%29=3960%2Crt=3960%29%29 ALIGN=MIDDLE  ALT=\"highlight_green%28system%28%28r%2B80%29%28t-2%29=3960%2Crt=3960%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
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