document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=197729>Question 197729</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Thelma's average driving speed is 3 miles per hour faster than Doug's.  In the same length of time it takes Thelma to drive 200 miles, Doug only drives 188 miles.  What is Thelma's average driving speed? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #148406 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=148406\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I have an equation for each one<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5Bt%5D+=+r%5Bt%5D%2At%5Bt%5D ALIGN=MIDDLE  ALT=\"d%5Bt%5D+=+r%5Bt%5D%2At%5Bt%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5Bd%5D+=+r%5Bd%5D%2At%5Bd%5D ALIGN=MIDDLE  ALT=\"d%5Bd%5D+=+r%5Bd%5D%2At%5Bd%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "---------------------<BR>\n" );
document.write( "given:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5Bt%5D+=+r%5Bd%5D+%2B+3 ALIGN=MIDDLE  ALT=\"r%5Bt%5D+=+r%5Bd%5D+%2B+3\"   DISABLED_style= \"max-width:90%; height:auto;\" > mi/hr<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%5Bt%5D+=+t%5Bd%5D ALIGN=MIDDLE  ALT=\"t%5Bt%5D+=+t%5Bd%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > (I'll call them both <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t ALIGN=MIDDLE  ALT=\"t\"   DISABLED_style= \"max-width:90%; height:auto;\" >)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5Bt%5D+=+200 ALIGN=MIDDLE  ALT=\"d%5Bt%5D+=+200\"   DISABLED_style= \"max-width:90%; height:auto;\" > mi<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5Bd%5D+=+188 ALIGN=MIDDLE  ALT=\"d%5Bd%5D+=+188\"   DISABLED_style= \"max-width:90%; height:auto;\" > mi<BR>\n" );
document.write( "---------------------<BR>\n" );
document.write( "What is Thelma's average driving speed?<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5Bt%5D+=+r%5Bt%5D%2At%5Bt%5D ALIGN=MIDDLE  ALT=\"d%5Bt%5D+=+r%5Bt%5D%2At%5Bt%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=200+=+r%5Bt%5D%2At ALIGN=MIDDLE  ALT=\"200+=+r%5Bt%5D%2At\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=200+=+%28r%5Bd%5D+%2B+3%29%2At ALIGN=MIDDLE  ALT=\"200+=+%28r%5Bd%5D+%2B+3%29%2At\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5Bd%5D+=+r%5Bd%5D%2At%5Bd%5D ALIGN=MIDDLE  ALT=\"d%5Bd%5D+=+r%5Bd%5D%2At%5Bd%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=188+=+r%5Bd%5D%2At ALIGN=MIDDLE  ALT=\"188+=+r%5Bd%5D%2At\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5Bd%5D+=+188%2Ft ALIGN=MIDDLE  ALT=\"r%5Bd%5D+=+188%2Ft\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Substituting,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=200+=+%28188%2Ft+%2B+3%29%2At ALIGN=MIDDLE  ALT=\"200+=+%28188%2Ft+%2B+3%29%2At\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=200+=+188+%2B+3t ALIGN=MIDDLE  ALT=\"200+=+188+%2B+3t\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3t+=+12 ALIGN=MIDDLE  ALT=\"3t+=+12\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t+=+4 ALIGN=MIDDLE  ALT=\"t+=+4\"   DISABLED_style= \"max-width:90%; height:auto;\" > hr<BR>\n" );
document.write( "Substituting,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=200+=+r%5Bt%5D%2At ALIGN=MIDDLE  ALT=\"200+=+r%5Bt%5D%2At\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5Bt%5D+=+200%2F4 ALIGN=MIDDLE  ALT=\"r%5Bt%5D+=+200%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5Bt%5D+=+50 ALIGN=MIDDLE  ALT=\"r%5Bt%5D+=+50\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Thelma's average driving speed was 50 mi/hr<BR>\n" );
document.write( "check:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5Bt%5D+=+r%5Bd%5D+%2B+3 ALIGN=MIDDLE  ALT=\"r%5Bt%5D+=+r%5Bd%5D+%2B+3\"   DISABLED_style= \"max-width:90%; height:auto;\" > mi/hr<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=50+=+r%5Bd%5D+%2B+3 ALIGN=MIDDLE  ALT=\"50+=+r%5Bd%5D+%2B+3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r%5Bd%5D+=+47 ALIGN=MIDDLE  ALT=\"r%5Bd%5D+=+47\"   DISABLED_style= \"max-width:90%; height:auto;\" > mi/hr<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5Bd%5D+=+r%5Bd%5D%2At%5Bd%5D ALIGN=MIDDLE  ALT=\"d%5Bd%5D+=+r%5Bd%5D%2At%5Bd%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=188+=+47%2A4 ALIGN=MIDDLE  ALT=\"188+=+47%2A4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=188+=+188 ALIGN=MIDDLE  ALT=\"188+=+188\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5Bt%5D+=+r%5Bt%5D%2At%5Bt%5D ALIGN=MIDDLE  ALT=\"d%5Bt%5D+=+r%5Bt%5D%2At%5Bt%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=200+=+50%2A4 ALIGN=MIDDLE  ALT=\"200+=+50%2A4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=200+=+200 ALIGN=MIDDLE  ALT=\"200+=+200\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "OK<BR>\n" );
document.write( "  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );