document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=744798>Question 744798</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need to find the partial sum of 1+5+9+...+109\r<BR>\n" );
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document.write( "I understand how to find partial sum. I just haven't been able to figure out the common difference between the numbers.\r<BR>\n" );
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document.write( "So far, I have the equation set up as 109=1+(n-1)d<BR>\n" );
document.write( "I just need to find d.\r<BR>\n" );
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document.write( "Could you explain to me how to find this answer? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #453561 by </B><A HREF=/tutors/aboutme.mpl?userid=MathTherapy><B>MathTherapy(10552)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathTherapy><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=MathTherapy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=453561\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "I need to find the partial sum of 1+5+9+...+109\r<BR>\n" );
document.write( "\n" );
document.write( "I understand how to find partial sum. I just haven't been able to figure out the common difference between the numbers.\r<BR>\n" );
document.write( "\n" );
document.write( "So far, I have the equation set up as 109=1+(n-1)d<BR>\n" );
document.write( "I just need to find d.\r<BR>\n" );
document.write( "\n" );
document.write( "Could you explain to me how to find this answer?\r<BR>\n" );
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document.write( "d or common difference is 4. Isn't 5 - 1 = 4?\r<BR>\n" );
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document.write( "Doesn't 9 - 5 = 4? </SPAN>\n" );
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