document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=398127>Question 398127</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Problem shown and given in class - I understand everything down to <BR>\n" );
document.write( "x = 2/(1/40 - 1/45)*60  <--- How did they get 12 out of this? Please and thank you!<BR>\n" );
document.write( "x = 12 miles<BR>\n" );
document.write( "Foster drove to work on Monday at 40 mph and arrived one minute late. He left at the same time on Tuesday, drove at 45 mph, and arrived one minute early. How far does Foster drive to work?\r<BR>\n" );
document.write( "\n" );
document.write( "40 mph = 2/3 mi/minute<BR>\n" );
document.write( "45 mph = 3/4 mi/minute<BR>\n" );
document.write( "The difference in time is 2 minutes\r<BR>\n" );
document.write( "\n" );
document.write( "x/40 - x/45 = 2/60<BR>\n" );
document.write( "x(1/40 - 1/45) = 2/60<BR>\n" );
document.write( "x = 2/(1/40 - 1/45)*60<BR>\n" );
document.write( "x = 12 miles<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #282100 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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=282100\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Ok, starting with:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+2%2F%28%281%2F40-1%2F45%29%2A60%29 ALIGN=MIDDLE  ALT=\"x+=+2%2F%28%281%2F40-1%2F45%29%2A60%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Let's subtract the two fractions first:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F40-1%2F45 ALIGN=MIDDLE  ALT=\"1%2F40-1%2F45\"   DISABLED_style= \"max-width:90%; height:auto;\" > The LCD is 360, so...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%289%29%2F40%289%29+-+1%288%29%2F45%288%29+=+9%2F360-8%2F360 ALIGN=MIDDLE  ALT=\"1%289%29%2F40%289%29+-+1%288%29%2F45%288%29+=+9%2F360-8%2F360\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F360 ALIGN=MIDDLE  ALT=\"1%2F360\"   DISABLED_style= \"max-width:90%; height:auto;\" > Ok so far? So we have...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+2%2F%28%281%2F360%29%2A60%29 ALIGN=MIDDLE  ALT=\"x+=+2%2F%28%281%2F360%29%2A60%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+2%2F%281%2F6%29 ALIGN=MIDDLE  ALT=\"x+=+2%2F%281%2F6%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+2%2A6 ALIGN=MIDDLE  ALT=\"x+=+2%2A6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+12 ALIGN=MIDDLE  ALT=\"x+=+12\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Does this help? </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );