document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1048576>Question 1048576</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A passenger plane flew to Jakarta and back. It took one hour longer to go there than it did to come back. Let t represent the time it took to fly back. The average speed on the trip there was 180mi/h. The average speed on the way back was 200m/h. How many hours did each trip take?\r<BR>\n" );
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document.write( "Tried:\r<BR>\n" );
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document.write( "180(t+1)=200t<BR>\n" );
document.write( "180t+180=200t<BR>\n" );
document.write( "180=20t<BR>\n" );
document.write( "t=90\r<BR>\n" );
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document.write( "Is this correct?\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #664174 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</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=664174\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Time t is in hours.  Distance each way d, is also unknown as is t.<BR>\n" );
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document.write( "                   RATE           TIME        DISTANCE\r\n" );
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document.write( "TRIP THERE         180            t+1           d\r\n" );
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document.write( "RETURNING          200            t             d\r\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28180%2A%28t%2B1%29=d%2C200t=d%29 ALIGN=MIDDLE  ALT=\"system%28180%2A%28t%2B1%29=d%2C200t=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=180%28t%2B1%29=200t ALIGN=MIDDLE  ALT=\"180%28t%2B1%29=200t\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=180t%2B180=200t ALIGN=MIDDLE  ALT=\"180t%2B180=200t\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=180=20t ALIGN=MIDDLE  ALT=\"180=20t\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=180%2F20=18%2F2 ALIGN=MIDDLE  ALT=\"t=180%2F20=18%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "You just made a decimal mistake.\r<BR>\n" );
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document.write( "--<BR>\n" );
document.write( "Another way of showing that you know what you need to do to solve this problem, but as sometimes happens, a computational mistake occurs.  Mistake NOT because of lack of understanding - just a slippage in attention. </SPAN>\n" );
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