document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=965811>Question 965811</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the time, t, required to drive a certain distance varies inversely with speed, r. If it takes 12 hours to drive the distance at 60 miles per hour, how long will it take to drive the same distance at 85 miles per hour? \r<BR>\n" );
document.write( "\n" );
document.write( "about 7.08 hours<BR>\n" );
document.write( "about 5.00 hours<BR>\n" );
document.write( "about 1.42 hours <BR>\n" );
document.write( "about 8.47 hours </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #590298 by </B><A HREF=/tutors/aboutme.mpl?userid=macston><B>macston(5194)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=macston><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=macston><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=590298\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "d=a certain distance <BR>\n" );
document.write( "d=rt Since distance at each speed is the same:<BR>\n" );
document.write( "rate(60mph) x time@60mph = rate(95mph) x time@85mph<BR>\n" );
document.write( ".<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2860mph%29%2812hrs%29=%2885mph%29t ALIGN=MIDDLE  ALT=\"%2860mph%29%2812hrs%29=%2885mph%29t\"   DISABLED_style= \"max-width:90%; height:auto;\" > where t=time at 85 mph<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=720+miles=85t+mph ALIGN=MIDDLE  ALT=\"720+miles=85t+mph\"   DISABLED_style= \"max-width:90%; height:auto;\" > Divide each side by 85 mph.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8.47+hours=t ALIGN=MIDDLE  ALT=\"8.47+hours=t\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "ANSWER: It would take 8.47 hours to dive the same distance at 85 mph that it takes 12 hours to drive at 60 mph\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );