document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=590273>Question 590273</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two cars start moving from the same point. One travels east at 45 miles per hour and the other travels north at 55 miles per hour. How fast is the distance between them increasing 85 minutes after they start. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #375089 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=375089\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Two cars start moving from the same point. One travels east at 45 miles per hour and the other travels north at 55 miles per hour. How fast is the distance between them increasing 85 minutes after they start.<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "Their directions make a right angle.<BR>\n" );
document.write( "----<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r+=+sqrt%2845%5E2+%2B+55%5E2%29+=+sqrt%285050%29 ALIGN=MIDDLE  ALT=\"r+=+sqrt%2845%5E2+%2B+55%5E2%29+=+sqrt%285050%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "r =~ 71 mi/hr at all times<BR>\n" );
document.write( "===============<BR>\n" );
document.write( "That does not apply if they start from different points, or at different times.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );