document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=883420>Question 883420</A>: <I><SPAN STYLE=\"word-break: break-all;\"> We have the letters A B C D E and F. How many possible three-letter codes are there if repititions are permitted and codes must contain exactly one letter A </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #533491 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=533491\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Repetitions are allowed except for the letter A. <BR>\n" );
document.write( "So then it must contain one A and repetitions of the other 5 letters is OK.<BR>\n" );
document.write( "The A can be in one of three locations:(AXY),(XAY),(XYA)<BR>\n" );
document.write( "So we'll find the total number for one and multiply by 3. <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=N=1%2A5%2A5=25 ALIGN=MIDDLE  ALT=\"N=1%2A5%2A5=25\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3N=3%2A25 ALIGN=MIDDLE  ALT=\"3N=3%2A25\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3N=75 ALIGN=MIDDLE  ALT=\"3N=75\"   DISABLED_style= \"max-width:90%; height:auto;\" > possible codes </SPAN>\n" );
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