document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=232767>Question 232767</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Pairs of markings 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 time T. In one particular pair of markings, R is 45 mph when T is 6 seconds. Find the speed of a car that travels the given distance in 5 seconds. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #172039 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=172039\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Pairs of markings a set distance apart are made on highways so that police can detect drivers exceeding the speed limit.<BR>\n" );
document.write( " Over a fixed distance, the speed R varies inversely with time T.<BR>\n" );
document.write( " In one particular pair of markings, R is 45 mph when T is 6 seconds.<BR>\n" );
document.write( " Find the speed of a car that travels the given distance in 5 seconds.<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Speed varies inversely with time so we can write an inverted ratio equation, find r<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2F6 ALIGN=MIDDLE  ALT=\"5%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=45%2Fr ALIGN=MIDDLE  ALT=\"45%2Fr\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Cross multiply<BR>\n" );
document.write( "5r = 6 * 45<BR>\n" );
document.write( ":<BR>\n" );
document.write( "5r = 270<BR>\n" );
document.write( "r = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=270%2F5 ALIGN=MIDDLE  ALT=\"270%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "r = 54 mph if he passes the markers in 5 sec </SPAN>\n" );
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