document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1098503>Question 1098503</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Pierre drove from Ottawa to London, a distance of 575 km in 8 h. Part of the trip was spent driving on a four-lane highway where he averaged 100km/h. The remainder of the trip was spent on a two-lane highway where he averaged 500km/h. How much time was spent driving on the four-lane highway?\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #712867 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=712867\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x hours at 100 km/h=100x km<BR>\n" );
document.write( "(8-x) hours at 50 km/h (I am editing the 500 km/h to 50 km/h)=400-50x km<BR>\n" );
document.write( "The two add to 575 km.<BR>\n" );
document.write( "100x+400-50x=575<BR>\n" );
document.write( "50x=175 km<BR>\n" );
document.write( "x=3.5 hours ANSWER, which is 350 km<BR>\n" );
document.write( "8-x=4.5 hours, which is 225 km. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );