document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=108319>Question 108319</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 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 is P(in millions)=250 * 2 (y-1990/66)\r<BR>\n" );
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document.write( "What will the population of the united states be in 2025 if this growth continues?\r<BR>\n" );
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document.write( "Please help I have no idea how to get this started. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #78951 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=78951\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> P(year) = 250 * 2^(y-1990/66) ; Population is millions.<BR>\n" );
document.write( "What will the population of the united states be in 2025 if this growth continues? <BR>\n" );
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document.write( "P(2025) = 250*2^[(2025-1990/66]<BR>\n" );
document.write( "P(2025) = 250*2^[35/66]<BR>\n" );
document.write( "P(2025) = 250*1.44423...<BR>\n" );
document.write( "P(2025) = 361.058 millions<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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