document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=862927>Question 862927</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A student drove a distance of 125 miles at an average speed of 55 mph. How much faster would she have to drive on the return trip to save 30 minutes of driving time?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #520073 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=520073\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A student drove a distance of 125 miles at an average speed of 55 mph. How much faster would she have to drive on the return trip to save 30 minutes of driving time?<BR>\n" );
document.write( "***<BR>\n" );
document.write( "let x=speed on the return trip to save 30 minutes of driving time<BR>\n" );
document.write( "travel time=distance/speed<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=125%2F55-125%2Fx=1%2F2 ALIGN=MIDDLE  ALT=\"125%2F55-125%2Fx=1%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "LCD:55x<BR>\n" );
document.write( "125x-55*125=55x/2<BR>\n" );
document.write( "250x-13750=55x<BR>\n" );
document.write( "195x=13750<BR>\n" );
document.write( "x=70.51<BR>\n" );
document.write( "speed on the return trip to save 30 minutes of driving time=70.51 mph<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );