document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1039532>Question 1039532</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The 4th term of an arithmetic sequence is 28 and the 7th term is 43. Find the 79th term. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #654294 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=654294\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The 4th term of an arithmetic sequence is 28 and the 7th term is 43. Find the 79th term. <BR>\n" );
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document.write( "a + 3d = 28<BR>\n" );
document.write( "a + 6d = 43<BR>\n" );
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document.write( "Subtract and solve for \"d\"::<BR>\n" );
document.write( "3d = 15<BR>\n" );
document.write( "d = 5<BR>\n" );
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document.write( "Solve for \"a\":<BR>\n" );
document.write( "a + 3d = 28<BR>\n" );
document.write( "a + 15 = 38<BR>\n" );
document.write( "a = 25<BR>\n" );
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document.write( "Ans: a(79) = a+78d = 25 + 78*5 = 25 = 350+40 = 398<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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