document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=870877>Question 870877</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Grace's average driving speed is 10 mph faster than Tom's. In the same length of time, it takes Grace to drive 280 miles, Tom only drives 230. What is Grace's average speed? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #525215 by </B><A HREF=/tutors/aboutme.mpl?userid=JulietG><B>JulietG(1812)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=JulietG><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=JulietG><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=525215\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> What is the difference in the distance between Grace and Tom?  280-230=50<BR>\n" );
document.write( "What is the difference in the RATE of speed?  10 mph [given]<BR>\n" );
document.write( "If she drives 50 miles further at a rate of 10mph faster, they drive for five hours (50/10)<BR>\n" );
document.write( "If she drives 280 miles in 5 hours, her speed is 280/5, or 56 mph<BR>\n" );
document.write( "If he drives 230 miles in 5 hours, his speed is 230/5, or 46 mph<BR>\n" );
document.write( "The average is her speed + his speed, divided by 2.  (56+46)/2, or 102/2, or 51 mph. </SPAN>\n" );
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