document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1054600>Question 1054600</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Marge left her home in Springfield at 9:00 A.M. and drove to Shelbyville, arriving at 10:45 A.M.<BR>\n" );
document.write( "She went shopping at the Shelbyville Galleria and had lunch at Krusty Burger in the food court. She<BR>\n" );
document.write( "left to return home at 2:15 P.M. Because it had started raining, she drove 10 mph slower than she<BR>\n" );
document.write( "did that morning. Marge got home at 4:15 P.M. What is the distance between the two cities? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #669786 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=669786\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Her driving time to Shelbyville was<BR>\n" );
document.write( "10:45 minus 9:00 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1.75+ ALIGN=MIDDLE  ALT=\"+1.75+\"   DISABLED_style= \"max-width:90%; height:auto;\" > hrs<BR>\n" );
document.write( "( I converted 45 min to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.75+ ALIGN=MIDDLE  ALT=\"+.75+\"   DISABLED_style= \"max-width:90%; height:auto;\" > hrs )<BR>\n" );
document.write( "----------------------------------<BR>\n" );
document.write( "Her driving time back to Springfield was<BR>\n" );
document.write( "4:15 minus 2:15 = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2+ ALIGN=MIDDLE  ALT=\"+2+\"   DISABLED_style= \"max-width:90%; height:auto;\" > hrs<BR>\n" );
document.write( "----------------------------------<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+s+ ALIGN=MIDDLE  ALT=\"+s+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = her speed in mi/hr<BR>\n" );
document.write( "driving to Shelbyville<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+s+-+10+ ALIGN=MIDDLE  ALT=\"+s+-+10+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = her speed driving back <BR>\n" );
document.write( "to Springfield in mi/hr<BR>\n" );
document.write( "----------------------------------<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+ ALIGN=MIDDLE  ALT=\"+d+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = the distance between <BR>\n" );
document.write( "the two cities in miles<BR>\n" );
document.write( "----------------------------------<BR>\n" );
document.write( "Equation for drive to Shelbyville:<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+=+s%2A1.75+ ALIGN=MIDDLE  ALT=\"+d+=+s%2A1.75+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Equation for drive back to Springfield:<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+=+%28+s+-+10+%29%2A2+ ALIGN=MIDDLE  ALT=\"+d+=+%28+s+-+10+%29%2A2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "----------------------------------<BR>\n" );
document.write( "Substitute (1) into (2)<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1.75s+=+2%2A%28+s+-+10+%29+ ALIGN=MIDDLE  ALT=\"+1.75s+=+2%2A%28+s+-+10+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1.75s+=+2s+-+20+ ALIGN=MIDDLE  ALT=\"+1.75s+=+2s+-+20+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.25s+=+20+ ALIGN=MIDDLE  ALT=\"+.25s+=+20+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+s+=+80+ ALIGN=MIDDLE  ALT=\"+s+=+80+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "--------------------<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+=+1.75s+ ALIGN=MIDDLE  ALT=\"+d+=+1.75s+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+=+1.75%2A80+ ALIGN=MIDDLE  ALT=\"+d+=+1.75%2A80+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+=+140+ ALIGN=MIDDLE  ALT=\"+d+=+140+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "the distance between the 2 cities is 140 mi<BR>\n" );
document.write( "--------------------<BR>\n" );
document.write( "check answer:<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+=+%28+s+-+10+%29%2A2+ ALIGN=MIDDLE  ALT=\"+d+=+%28+s+-+10+%29%2A2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+=+%28+80+-+10+%29%2A2+ ALIGN=MIDDLE  ALT=\"+d+=+%28+80+-+10+%29%2A2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+=+2%2A70+ ALIGN=MIDDLE  ALT=\"+d+=+2%2A70+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d+=+140+ ALIGN=MIDDLE  ALT=\"+d+=+140+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "OK </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );