document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=207646>Question 207646</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Maria drove at a steady speed for 5 hrs. on the turnpike.  she then slowed her traveling speed by 15 miles per hour for traveling on secondary roads.  the entire trip took 7 hours and covered 369 miles.  what was her speed on the turnpike? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #157073 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=157073\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> d=rt<BR>\n" );
document.write( "369=5x+(7-5)*(x-15)<BR>\n" );
document.write( "369=5x+2(x-15)<BR>\n" );
document.write( "369=5x+2x-30<BR>\n" );
document.write( "369+30=7x<BR>\n" );
document.write( "399=7x<BR>\n" );
document.write( "x=399/7<BR>\n" );
document.write( "x=57 mph. for the first 5 hrs.<BR>\n" );
document.write( "57-15=42 mph for the last 2 hrs.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "369=5*57+2*42<BR>\n" );
document.write( "369=285+84<BR>\n" );
document.write( "369 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );