document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=242752>Question 242752</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The time t required to drive a fixed distance varies inversely as the speed r. It takes 5 hr at 55mph to drive a fixed distance. How long would it take at 40 mph? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #177697 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=177697\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The time t required to drive a fixed distance varies inversely as the speed r. It takes 5 hr at 55mph to drive a fixed distance. How long would it take at 40 mph?<BR>\n" );
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document.write( "t = k*(1/r)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Find k if t = 5 hr when r = 55 mph<BR>\n" );
document.write( "5 = k*(1/55)<BR>\n" );
document.write( "k = 5*55 = 275<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Equation: <BR>\n" );
document.write( "t = 275/r<BR>\n" );
document.write( "How long would it take at 40 mph?<BR>\n" );
document.write( "t = 275/40<BR>\n" );
document.write( "t = 6 7/8 hrs.<BR>\n" );
document.write( "====================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "-----------<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );