document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=471702>Question 471702</A>: <I><SPAN STYLE=\"word-break: break-all;\"> suppose P(t), the population in millions of a country in a year t, is defined by the formula:      P(t)=125+.2t?<BR>\n" );
document.write( "a) what is the initial population of the country?<BR>\n" );
document.write( "b) what is the country's growth rate?<BR>\n" );
document.write( "c) what is the country's expected population 5 years from now (i.e t-5)? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #323507 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=323507\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> suppose P(t), the population in millions of a country in a year t, is defined by the formula:      P(t)= 125+.2t?<BR>\n" );
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document.write( "The formula makes no sense.<BR>\n" );
document.write( "It says the population is 125 million + 20% of a year.<BR>\n" );
document.write( "You don't add a part of a year to a population size.<BR>\n" );
document.write( "It makes no sense.\r<BR>\n" );
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document.write( "a) what is the initial population of the country?<BR>\n" );
document.write( "P(0) = 125 million<BR>\n" );
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document.write( "b) what is the country's growth rate?<BR>\n" );
document.write( "Ans: I think you want to say it is 20%<BR>\n" );
document.write( "P(t) = 125(1.2)^t<BR>\n" );
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document.write( "c) what is the country's expected population 5 years from now (i.e t-5)?<BR>\n" );
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document.write( "P(5) = 125(1.2)^5 = 311.04 million<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
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