document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1075231>Question 1075231</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the first term of a sequence when the eighth term is twice the third term and the sum of the first eight terms is 39? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #689930 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=689930\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a8=2a3<BR>\n" );
document.write( "a1+a2+a3+a4+a5+a6+a7+a8=39<BR>\n" );
document.write( "(8/2)(a1+a8)=39=4(a1+2a3)\r<BR>\n" );
document.write( "\n" );
document.write( "a4=1.2a3<BR>\n" );
document.write( "a5=1.4a3<BR>\n" );
document.write( "a6=1.6a3<BR>\n" );
document.write( "a7=1.8a3<BR>\n" );
document.write( "a8=2a3<BR>\n" );
document.write( "a3=a3<BR>\n" );
document.write( "a2=0.8a3<BR>\n" );
document.write( "a1=0.6a3<BR>\n" );
document.write( "The sum, 39, equals 10.4 a3<BR>\n" );
document.write( "Therefore, a3=3.75<BR>\n" );
document.write( "a8=7.5<BR>\n" );
document.write( "a1=2.25 ANSWER<BR>\n" );
document.write( "sum=4*(a1+a8)=4(9.75)=39<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );