document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1018248>Question 1018248</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A sequence of numbers begins with the numbers -10,20,30,..., and each term afterward is the product of the preceding three terms.How many of the first 101 terms of this sequence are positive? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #634428 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=634428\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> We only care whether the terms are negative or positive, and not what they are.\r<BR>\n" );
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document.write( "The 4th term is negative since the product of 1 negative number and two positive numbers is negative. Doing this, we have:\r<BR>\n" );
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document.write( "N, P, P, N, N, P, P, N...\r<BR>\n" );
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document.write( "So it repeats NPPN. The first 100 terms will have 50 positive terms, and the 101th term is negative, so there are 50 positive terms total. </SPAN>\n" );
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