document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1080740>Question 1080740</A>: <I><SPAN STYLE=\"word-break: break-all;\"> dave traveled 280 miles at a certain speed (rate). If he had gone 5 mph faster, the trip would have taken 1 hour less what was his original rate? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #694858 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=694858\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> dave traveled 280 miles at a certain speed (rate). If he had gone 5 mph faster, the trip would have taken 1 hour less what was his original rate?<BR>\n" );
document.write( "----------<BR>\n" );
document.write( "t = d/r<BR>\n" );
document.write( "t = 280/r = (280/(r+5)) + 1<BR>\n" );
document.write( "280/r = (280 + r + 5)/(r+5)<BR>\n" );
document.write( "280*(r+5) = r^2 + 285r<BR>\n" );
document.write( "280r + 1400 = r^2 + 285r<BR>\n" );
document.write( "r^2 + 5r - 1400 = 0<BR>\n" );
document.write( "(r + 40)*(r - 35) = 0<BR>\n" );
document.write( "r = 35 mi/hr<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );