document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1039329>Question 1039329</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If a2=15 and a9=39, what is a16? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #654137 by </B><A HREF=/tutors/aboutme.mpl?userid=chen.aavaz><B>chen.aavaz(62)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=chen.aavaz><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=654137\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is an arithmetic sequence with common difference d, which can be calculated as follows:<BR>\n" );
document.write( "Number of terms from a2 to a9: 7, so the total difference for 7 terms is <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%2Ad=39-15=24 ALIGN=MIDDLE  ALT=\"7%2Ad=39-15=24\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Similarly, from a9 to a16 we have again 7 terms, so the total difference will again be 24.<BR>\n" );
document.write( "Therefore: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a16=a9%2B24=63 ALIGN=MIDDLE  ALT=\"a16=a9%2B24=63\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );