document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=983330>Question 983330</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Pair of marking, a set distance apart, are made on highways so that police can detect drivers exceeding the speed limit.  Over a fixed distance, the speed R varies inversely with the time T.  For one particular pair of markings, R is 56 mph when t is 9 seconds.  Find the speed of a car that travels the given distance in 8 seconds. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #604103 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><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=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=604103\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hi there,<BR>\n" );
document.write( "R varies inversely with the time T. <BR>\n" );
document.write( "R = k/T<BR>\n" );
document.write( "To find k the constant of proportionality<BR>\n" );
document.write( "R = k/T<BR>\n" );
document.write( "56 = k/9<BR>\n" );
document.write( "Cross multiply<BR>\n" );
document.write( "k = 9 x 56<BR>\n" );
document.write( "k = 504<BR>\n" );
document.write( "Formula: R = 504/T<BR>\n" );
document.write( "Find the speed of a car that travels <BR>\n" );
document.write( "the given distance in 8 seconds.<BR>\n" );
document.write( "R = 504/T<BR>\n" );
document.write( "R = 504/8<BR>\n" );
document.write( "R = 63mph.<BR>\n" );
document.write( "Hope this helps:-) </SPAN>\n" );
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