document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1084522>Question 1084522</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the sum of all of the 3-digit positive integers. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #698611 by </B><A HREF=/tutors/aboutme.mpl?userid=htmentor><B>htmentor(1343)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=htmentor><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=htmentor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=698611\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The three digit positive integers range from 100 to 999.  <BR>\n" );
document.write( "This is an arithmetic sequence with a common difference of 1.<BR>\n" );
document.write( "The sum of n terms of an arithmetic sequence is S_n = (n/2)(a_1 + a_n)<BR>\n" );
document.write( "The last term, 999, corresponds to n = 900.<BR>\n" );
document.write( "Thus S_n = (900/2)(100+999) = 494550 </SPAN>\n" );
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