document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=209242>Question 209242</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find the first term of the arithmetic progression whose third term a3 is 7 and<BR>\n" );
document.write( "whose eighth term a8 is 17\r<BR>\n" );
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document.write( "a)0  b) 2   c)3  d)1   e) 4 \r<BR>\n" );
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document.write( "                                                                      </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #158165 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=158165\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> find the first term of the arithmetic progression whose third term a3 is 7 and<BR>\n" );
document.write( "whose eighth term a8 is 17 <BR>\n" );
document.write( "a)0 b) 2 c)3 d)1 e) 4 <BR>\n" );
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document.write( "a(3) = a(1) + 2d = 7<BR>\n" );
document.write( "a(8) = a(1) + 7d = 17<BR>\n" );
document.write( "--------------------------------<BR>\n" );
document.write( "Subtract a(3) from a(8) to get:<BR>\n" );
document.write( "5d = 10<BR>\n" );
document.write( "d = 2<BR>\n" );
document.write( "---------------------<BR>\n" );
document.write( "Substitute that into a(1) + 2d = 7 to solve for a(1)<BR>\n" );
document.write( "a(1) + 2*2 = 7<BR>\n" );
document.write( "a(1) = 3<BR>\n" );
document.write( "==================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "Reply to stanbon@comcast.net </SPAN>\n" );
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