document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=144194>Question 144194</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A sprinter who average 30ft/sec. completed a race 1 sec before another sprinter who average 28ft/sec.What was the distance of the race. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #104963 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=104963\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> if the winner won by 1sec, he also won by 28ft; because the second sprinter ran 28ft/sec\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "the difference in their speeds was 2ft/sec; so to get a 28ft lead, the winner must have run for 14sec (28/2)\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "30ft/sec for 14sec is 420ft (140yd)\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "using equations __ let x=distance __ d=rt __ t=d/r\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "x/28=(x/30)+1 __ multiplying by 420 (LCM) __ 15x=14x+420 __ x=420 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );