document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=949706>Question 949706</A>: <I><SPAN STYLE=\"word-break: break-all;\"> show that, at 40km/h, it takes 1 minutes 30 seconds to travel 1km\r<BR>\n" );
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document.write( "then at 80km/h, how many seconds does it take to travel 1km? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #579838 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=579838\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> show that, at 40km/h, it takes 1 minutes 30 seconds to travel 1km<BR>\n" );
document.write( "d = r*t<BR>\n" );
document.write( "t = d/r = 1 km/40 km/hr = 1/40 hour<BR>\n" );
document.write( "1/40 hr * 60 min/hr = 1.5 minutes<BR>\n" );
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document.write( "then at 80km/h, how many seconds does it take to travel 1km<BR>\n" );
document.write( "2x the the speed --> 1/2 the time<BR>\n" );
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