document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=504099>Question 504099</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Bret drove for 4hrs on the freeway, then decreased his speed by 20mph and drove for 5more hours on a country road. If his total trip was 485miles, then what was his speed on the freeway? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #339508 by </B><A HREF=/tutors/aboutme.mpl?userid=oberobic><B>oberobic(2304)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=oberobic><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=339508\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f = freeway speed<BR>\n" );
document.write( "c = country road speed<BR>\n" );
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document.write( "4f + 5c = 485 miles<BR>\n" );
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document.write( "f = c+20<BR>\n" );
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document.write( "substitute<BR>\n" );
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document.write( "4(c+20) +5c = 485<BR>\n" );
document.write( "4c +80 + 5c = 485<BR>\n" );
document.write( "9c +80 = 485<BR>\n" );
document.write( "9c = 405<BR>\n" );
document.write( "c = 45 mph<BR>\n" );
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document.write( "f = 45+20<BR>\n" );
document.write( "f = 65 mph<BR>\n" );
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document.write( "Always check your work.<BR>\n" );
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document.write( "4f = 4(65) = 260 miles<BR>\n" );
document.write( "5c = 5(45) = 225 miles<BR>\n" );
document.write( "260+225 = 485 miles<BR>\n" );
document.write( "Correct.<BR>\n" );
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document.write( "Re-read the question to make sure you answer it.<BR>\n" );
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document.write( "What was his speed on the freeway?  65 mph.<BR>\n" );
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document.write( "Done.<BR>\n" );
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