document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=83849>Question 83849</A>: <I><SPAN STYLE=\"word-break: break-all;\"> FORMULA<BR>\n" );
document.write( "In 1975 the population of the Earth was approximately 4 billion and doubling every<BR>\n" );
document.write( "35 years. The formula for the population P in year Y for this doubling rate is<BR>\n" );
document.write( "P (in billions) -4 - 2( y-1975)-35\r<BR>\n" );
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document.write( "QUESTION<BR>\n" );
document.write( "82. Social science. What will the population of the United States be in 2025 if this growth rate continues?<BR>\n" );
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 #60327 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=60327\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In 1975 the population of the Earth was approximately 4 billion and doubling every<BR>\n" );
document.write( "35 years. The formula for the population P in year Y for this doubling rate is<BR>\n" );
document.write( "P(y)  = 4* 2^[( y-1975)/35](in billions)\r<BR>\n" );
document.write( "\n" );
document.write( "QUESTION<BR>\n" );
document.write( "82. Social science. What will the population of the United States be in 2025 if this growth rate continues?\r<BR>\n" );
document.write( "\n" );
document.write( "P(2025) = 4*2^[(2025-1975)/35]<BR>\n" );
document.write( "P(2025) = 4*2^(50/35)<BR>\n" );
document.write( "P(2025) = 4*2.6918 = 10.767... Billion<BR>\n" );
document.write( "=========<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );