document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=854346>Question 854346</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If I am traveling at 90 mph and a car is a quarter mile behind me, how fast must that car (mph) go to catch me within a quarter mile?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #514689 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=514689\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I will travel .25 miles at 90 mph<BR>\n" );
document.write( "Other car will travel .50 miles at 90+y mph\r<BR>\n" );
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document.write( "90x=.25,<BR>\n" );
document.write( "(90+y)*x=.50<BR>\n" );
document.write( "x = 1/360,   y = 90<BR>\n" );
document.write( "The second car must go 180 mph for 60*1/360=1/6  minute= 10 seconds\r<BR>\n" );
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