document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=855460>Question 855460</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how do I solve this question <BR>\n" );
document.write( "An arithmetic progression is a sequence of numbers whose nth term is given by a + (n - 1)d for some a and d. The sequence of numbers below form an arithmetic progression. 3, 7, 11, 15, 19, ... Which values of a and d lead to this sequence of numbers?<BR>\n" );
document.write( "Select one:\r<BR>\n" );
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document.write( "A. a = 3 and d = 4 \r<BR>\n" );
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document.write( "B. a = 4 and d = 3 \r<BR>\n" );
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document.write( "C. a = 3 and d = 7 \r<BR>\n" );
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document.write( "D. a = 7 and d = 3  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #515359 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=515359\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the first value is 3 and the d is 4 ie add 4 to get next number<BR>\n" );
document.write( "an = a1 + (n - 1)d<BR>\n" );
document.write( "A. a = 3 and d = 4  </SPAN>\n" );
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