document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=286007>Question 286007</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the 15th term and the sum of the first 15 terms for the following sequences.<BR>\n" );
document.write( "a) 12, 17, 22, ….<BR>\n" );
document.write( "b) 4, 10, 16, …. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #207410 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=207410\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "Find the 15th term and the sum of the first 15 terms for the following sequences.<BR>\n" );
document.write( "a) 12, 17, 22, ….<BR>\n" );
document.write( "b) 4, 10, 16, ….<BR>\n" );
document.write( ".<BR>\n" );
document.write( "The formula is:<BR>\n" );
document.write( "nth term = a + [(n - 1) * d]<BR>\n" );
document.write( "where<BR>\n" );
document.write( "a is the first term<BR>\n" );
document.write( "n is the nth term<BR>\n" );
document.write( "d is the distance<BR>\n" );
document.write( ".<BR>\n" );
document.write( "a) 12, 17, 22, ….<BR>\n" );
document.write( "d is 5<BR>\n" );
document.write( "n is 15<BR>\n" );
document.write( "15th term = 15+[(15-1)*5] = 15+[14*5] = 15+[70] = 85<BR>\n" );
document.write( "b) 4, 10, 16, ….<BR>\n" );
document.write( "d is 6<BR>\n" );
document.write( "n is 15<BR>\n" );
document.write( "15th term = 4+[(15-1)*6] = 4+[14*6] = 4+[84] = 88<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );