document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1025726>Question 1025726</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please is there anyone that can help me with this problem. I have look at videos and read my book on this but still can not figure this out. I thought maybe by there being 26 letters in the alphabet and 10 numbers I could find it that way. Then I tried by it 7 characters long but that was still wrong.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "A computer password is required to be 7 characters long. How many passwords are possible if the password requires 1 letter(s) and 6 digits (numbers 0-9), where no repetition of any letter or digit is allowed? \r<BR>\n" );
document.write( "\n" );
document.write( " There are  possible passwords. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #641022 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=641022\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> i believe your answer will be as follows.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "assuming that the letter is in the first position, then the number of possibilities is:\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "26 * 10 * 9 * 8 * 7 * 6 * 5\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "if the letter can be in any position, then multiply that result by 7 because there are 7 positions that the letter can be in.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "i get 3931200 assuming the letter has to be in the first position.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "i get 7 * 3931200 = 27518400 assuming the letter can be in any position.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "hopefully that agrees with what you should be getting.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "if not, then let me know what you should be getting and i'll try to figure it out.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );