document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=763467>Question 763467</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two friends decide to meet in Chicago to attend a Cubs baseball game. Rob travels 174miles  in the same time that Carl travels 156miles Rob's trip uses more interstate highways and he can average 6 mph more than Carl. What is Rob's average speed?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #464811 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><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=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=464811\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Carl's speed = x<BR>\n" );
document.write( "Rob's speed = x + 6<BR>\n" );
document.write( "Carl's time = 156 miles/x<BR>\n" );
document.write( "Rob's time = 174/x + 6<BR>\n" );
document.write( "As the time were the same<BR>\n" );
document.write( "we can say:-<BR>\n" );
document.write( "156/x = 174/x + 6<BR>\n" );
document.write( "Cross multiply<BR>\n" );
document.write( "174(x) = 156(x + 6)<BR>\n" );
document.write( "174x = 156x + 936<BR>\n" );
document.write( "174x - 156x = 936<BR>\n" );
document.write( "        18x = 936<BR>\n" );
document.write( "          x = 936/18<BR>\n" );
document.write( "          x = 52 mph<BR>\n" );
document.write( "Carl's speed = 52 mph<BR>\n" );
document.write( "Rob's speed  = 58 mph<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "156/52 = 3hrs<BR>\n" );
document.write( "174/58 = 3hrs<BR>\n" );
document.write( "Hope this helps.<BR>\n" );
document.write( ":-)<BR>\n" );
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