document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=148128>Question 148128</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 Albuquerque to Roswell and averaged 70 MPH from Roswell to Carlsbad. She covered the entire 220 miles in 3 hours. How long did she take to drive from Albuquerque to Roswell?\r<BR>\n" );
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document.write( "I started by making a table\r<BR>\n" );
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document.write( "DISTANCE      RATE            TIME\r<BR>\n" );
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document.write( "270           75              3hrs<BR>\n" );
document.write( "270           70              3hrs\r<BR>\n" );
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document.write( "but the problems that I was coming up with did not make sense to me. Am I going about thie correctly?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #108521 by </B><A HREF=/tutors/aboutme.mpl?userid=vleith><B>vleith(2983)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=vleith><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=108521\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You need to break the trip into two parts.<BR>\n" );
document.write( "The total trip is 220. The total time is 3 hours.<BR>\n" );
document.write( "Let the distance from Albuquerque to Roswell be x (watch out for aliens in Roswell). <BR>\n" );
document.write( "Then the distance from Roswell to Carlsbad is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=220+-x ALIGN=MIDDLE  ALT=\"220+-x\"   DISABLED_style= \"max-width:90%; height:auto;\" >  \r<BR>\n" );
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document.write( "The time for each leg is given by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=distance%2Fspeed+=+time ALIGN=MIDDLE  ALT=\"distance%2Fspeed+=+time\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The time to Roswell is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2F75 ALIGN=MIDDLE  ALT=\"x%2F75\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The time to Carlsbad is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28220-x%29%2F70 ALIGN=MIDDLE  ALT=\"%28220-x%29%2F70\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The total time is 3 hours.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3+=+x%2F75+%2B+%28220-x%29%2F70 ALIGN=MIDDLE  ALT=\"3+=+x%2F75+%2B+%28220-x%29%2F70\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3+=+x%2F75+%2B+220%2F70+-+x%2F70 ALIGN=MIDDLE  ALT=\"3+=+x%2F75+%2B+220%2F70+-+x%2F70\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3+-+%28200%2F70%29+=+x%2F75+-+x%2F70+ ALIGN=MIDDLE  ALT=\"3+-+%28200%2F70%29+=+x%2F75+-+x%2F70+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%28210+-+220%29%2F70%29+=+%2870x+-+75x%29%2F%2870%2A75%29+ ALIGN=MIDDLE  ALT=\"%28%28210+-+220%29%2F70%29+=+%2870x+-+75x%29%2F%2870%2A75%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%2870%2A75%29%2A%28-10%2F70%29%29+=+-+5x ALIGN=MIDDLE  ALT=\"%28%2870%2A75%29%2A%28-10%2F70%29%29+=+-+5x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-750+=+-5x ALIGN=MIDDLE  ALT=\"-750+=+-5x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=150+=+x ALIGN=MIDDLE  ALT=\"150+=+x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "So the distance to Roswell is 150 miles.\r<BR>\n" );
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document.write( "At an average speed of 75 mph, the drive to roswell takes 2 hours.<BR>\n" );
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