document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=41499>Question 41499</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0073016020/algebrahomeworkh>Beginning Algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> I need help, The U.S. population in 1990 was approximately 250 million, and the average growth rate for the past 30 years gives a doubling time of 66 years. The formula for the U.S.  is<BR>\n" );
document.write( "p(in millions)= 250 x 2^(y-1990)/66<BR>\n" );
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document.write( "What will the population of the United States be in 2025 if this growth rate continues?\r<BR>\n" );
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document.write( "I get to the point of being able to substitute y for 2025 but when I subtract 2025-1990 and then divide by 66 I get .9848484848 and so on. I'm not sure what to do at this point. Can you help me figure this out.   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #26780 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=26780\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The formula for the U.S.  is<BR>\n" );
document.write( "p(in millions)= 250 x 2^(y-1990)/66<BR>\n" );
document.write( " <BR>\n" );
document.write( "What will the population of the United States be in 2025 if this growth rate continues?\r<BR>\n" );
document.write( "<BR>\n" );
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document.write( "P ( in millions) = (250)2^(2025-1990)/66<BR>\n" );
document.write( "P = (250)2^(35/66)<BR>\n" );
document.write( "P = (250)2^0.53030303...<BR>\n" );
document.write( "P = (250)1.44423252<BR>\n" );
document.write( "P (in millions)= 361.058...<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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