document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1132154>Question 1132154</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A car travels 600 km  at an average speed of x km/h. If the car travels at a speed of (x-5) km/h, the journey would have taken 30 minutes longer. Form an equation in x and show that it reduces to x2-5x=6000. Solve this equation and find the time taken when the car travels at a speed of x km/h.\r<BR>\n" );
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document.write( "x2 is x squared </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #749085 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</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=749085\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Thirty minutes is half-hour.<BR>\n" );
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document.write( "            SPEED         TIME        DISTANCE\r\n" );
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document.write( "As Done       x           600/x       600\r\n" );
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document.write( "If           x-5         600/(x-5)    600\r\n" );
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document.write( "Difference               1/2\r\n" );
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document.write( "The starting equation is   <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=600%2F%28x-5%29-600%2Fx=1%2F2 ALIGN=MIDDLE  ALT=\"600%2F%28x-5%29-600%2Fx=1%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "STEPS:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1200%2F%28x-5%29-1200%2Fx=1 ALIGN=MIDDLE  ALT=\"1200%2F%28x-5%29-1200%2Fx=1\"   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=1200x-1200x%2B6000=x%5E2-5x ALIGN=MIDDLE  ALT=\"1200x-1200x%2B6000=x%5E2-5x\"   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=6000=x%5E2-5x ALIGN=MIDDLE  ALT=\"6000=x%5E2-5x\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Simplification should give  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28x%5E2-5x-6000=0%29 ALIGN=MIDDLE  ALT=\"highlight_green%28x%5E2-5x-6000=0%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Discriminant, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%5E2%2B4%2A6000=24025=155%5E2 ALIGN=MIDDLE  ALT=\"5%5E2%2B4%2A6000=24025=155%5E2\"   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=%285%2B155%29%2F2%29 ALIGN=MIDDLE  ALT=\"highlight_green%28x=%285%2B155%29%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "80 kilometers per hour </SPAN>\n" );
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