document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=183380>Question 183380</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I understand the examples you have given to find the sum of sequences but i have a problem which i couldn't find an example that will help me.\r<BR>\n" );
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document.write( "The Question:\r<BR>\n" );
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document.write( "In an arithmetic series, the terms of the series are equally spread out. For example, in<BR>\n" );
document.write( "1 + 5 + 9 + 13 + 17, consecutive terms are 4 apart. If the first term in an arithmetic series is<BR>\n" );
document.write( "3, the last term is 136, and the sum is 1,390, what are the first 3 terms? \r<BR>\n" );
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document.write( "I would like for you to show me a formula that will help me with this question because i have many problems on my homework that is this way.\r<BR>\n" );
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document.write( "Thank you </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #137721 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=137721\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The Question: <BR>\n" );
document.write( "In an arithmetic series, the terms of the series are equally spread out. For example, in<BR>\n" );
document.write( "1 + 5 + 9 + 13 + 17, consecutive terms are 4 apart. If the first term in an arithmetic series is<BR>\n" );
document.write( "3, the last term is 136, and the sum is 1,390, what are the first 3 terms? \r<BR>\n" );
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document.write( "I would like for you to show me a formula that will help me with this question because i have many problems on my homework that is this way. <BR>\n" );
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document.write( "The nth term: a(n) = a(1) + (n-1)d where d is the difference between<BR>\n" );
document.write( "two consecutive terms.<BR>\n" );
document.write( "The sum of n terms: S(n) = (n/2)[a(1) + a(n)]<BR>\n" );
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document.write( "You could Google \"arithmetic series\" and find out more about their properties.<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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