document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=148949>Question 148949</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Sheri drove southeast from Albuquerque to Roswell and then south to Carlsbad. She averaged 75 mph along the route from Alburquerque to Roswell and averaged 70 mphfrom Roswell to Carlsbad. She covered the entire 220 miles in 3 hours. How long did she take to drive from Alburquerque to Roswell? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #109285 by </B><A HREF=/tutors/aboutme.mpl?userid=mangopeeler07><B>mangopeeler07(462)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mangopeeler07><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=109285\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x=time from Alburquerque to Roswell (in hrs)<BR>\n" );
document.write( "y=time from Roswell to Carlsbad (in hrs)<BR>\n" );
document.write( "coefficient=mph\r<BR>\n" );
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document.write( "75x+70y=220----------------because hr times mph gives you total miles<BR>\n" );
document.write( "x+y=3----------------------total time is 3 hrs\r<BR>\n" );
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document.write( "Solve for y in the second equation<BR>\n" );
document.write( "y=3-x\r<BR>\n" );
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document.write( "Plug that into the first equation<BR>\n" );
document.write( "75x+70(3-x)=220\r<BR>\n" );
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document.write( "Distribute<BR>\n" );
document.write( "75x+210-70x=220\r<BR>\n" );
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document.write( "Combine like terms<BR>\n" );
document.write( "5x+210=220\r<BR>\n" );
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document.write( "Subtract 210<BR>\n" );
document.write( "5x=10<BR>\n" );
document.write( "x=2\r<BR>\n" );
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document.write( "x=time from Alburquerque to Roswell (in hrs)\r<BR>\n" );
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document.write( "time from Alburquerque to Roswell=2 hrs. </SPAN>\n" );
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