document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=631628>Question 631628</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A person drives 390 miles on a stretch<BR>\n" );
document.write( "of road. Half the distance is driven traveling 5<BR>\n" );
document.write( "miles per hour below the speed limit, and half the<BR>\n" );
document.write( "distance is driven traveling 5 miles per hour above<BR>\n" );
document.write( "the speed limit. If the time spent traveling at the slower<BR>\n" );
document.write( "speed exceeds the time spent traveling at the faster<BR>\n" );
document.write( "speed by 24 minutes, find the speed limit. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #397715 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=397715\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let the speed limit be x mph\r<BR>\n" );
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document.write( "First half speed = (x-5) mph<BR>\n" );
document.write( "Second half speed = (x+5) mph\r<BR>\n" );
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document.write( "Half distance = 390/2 = 195 miles\r<BR>\n" );
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document.write( "24 minutes = 24/60 = 2/5 hours\r<BR>\n" );
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document.write( "time = distance/speed\r<BR>\n" );
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document.write( "First half time = 195/(x-5)\r<BR>\n" );
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document.write( "Seond half time = 195/(x+5)\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=195%2F%28x-5%29+-195%2F%28x%2B5%29+=+2%2F5 ALIGN=MIDDLE  ALT=\"195%2F%28x-5%29+-195%2F%28x%2B5%29+=+2%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "LCD = 5(x+5)(x-5)\r<BR>\n" );
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document.write( "Multiply equation by the LCD<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=195%2A5%28x%2B5%29+-195%2A5%28x-5%29=+2%28x-5%29%28x%2B5%29 ALIGN=MIDDLE  ALT=\"195%2A5%28x%2B5%29+-195%2A5%28x-5%29=+2%28x-5%29%28x%2B5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "975x+4875-975x+4875 = 2(x^2-25)\r<BR>\n" );
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document.write( "9750 = 2x^2-50<BR>\n" );
document.write( "2x^2= 9800<BR>\n" );
document.write( "/2<BR>\n" );
document.write( "x^2= 4900<BR>\n" );
document.write( "take the square root<BR>\n" );
document.write( "x= 70 mph\r<BR>\n" );
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document.write( "Speed limit is 70 mph\r<BR>\n" );
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document.write( "m.ananth@hotmail.ca\r<BR>\n" );
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document.write( " </SPAN>\n" );
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