document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=439530>Question 439530</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am having trouble with this question:\r<BR>\n" );
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document.write( "Write a formula for the general term (the nth term) of the arithmetic sequence whose second term, a base7 is 4 and whose ninth term, a base is 12.\r<BR>\n" );
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document.write( "I am thinking the formula to use is an= a1+(n-1)d<BR>\n" );
document.write( "an=1(12-1)4\r<BR>\n" );
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document.write( "Is this right?\r<BR>\n" );
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document.write( "If you could help me I would appreciate it\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 #303746 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=303746\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Write a formula for the general term (the nth term) of the arithmetic sequence whose second term, a base7 is 4 and whose ninth term, a base is 12. <BR>\n" );
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document.write( "2nd term: a + (2-1)d = 4<BR>\n" );
document.write( "9th term: a + (9-1)d = 12<BR>\n" );
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document.write( "Modify:<BR>\n" );
document.write( "a + d = 4<BR>\n" );
document.write( "a + 8d=12<BR>\n" );
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document.write( "Subtract and solve for \"d\":<BR>\n" );
document.write( "7d = 8<BR>\n" );
document.write( "d = 8/7<BR>\n" );
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document.write( "Solve for \"a\":<BR>\n" );
document.write( "a+d = 4<BR>\n" );
document.write( "a + (8/7) = 28/7<BR>\n" );
document.write( "a = 20/7<BR>\n" );
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document.write( "General term:<BR>\n" );
document.write( "a(n) = (20/7)+(n-1)(8/7)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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