document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=313805>Question 313805</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A certain country's population P(t), in millions, t years after 1980 can be approximated by<BR>\n" );
document.write( "P(t) = 5.495(1.016)t .<BR>\n" );
document.write( "In what year did the country's population reach 3 million? \r<BR>\n" );
document.write( "\n" );
document.write( "a.1947<BR>\n" );
document.write( "b.1932<BR>\n" );
document.write( "c.1942<BR>\n" );
document.write( "d.1952\r<BR>\n" );
document.write( "\n" );
document.write( "I can't do it backwards. Please help </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #224389 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=224389\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A certain country's population P(t), in millions, t years after 1980 can be approximated by<BR>\n" );
document.write( "P(t) = 5.495(1.016)t .<BR>\n" );
document.write( "In what year did the country's population reach 3 million?<BR>\n" );
document.write( "a.1947<BR>\n" );
document.write( "b.1932<BR>\n" );
document.write( "c.1942<BR>\n" );
document.write( "d.1952 <BR>\n" );
document.write( ".<BR>\n" );
document.write( "Given:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+P%28t%29+=+5.495%281.016%29%5Et+ ALIGN=MIDDLE  ALT=\"+P%28t%29+=+5.495%281.016%29%5Et+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Set P(t) to 3 and solve for t:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3+=+5.495%281.016%29%5Et+ ALIGN=MIDDLE  ALT=\"+3+=+5.495%281.016%29%5Et+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3%2F5.495+=+%281.016%29%5Et+ ALIGN=MIDDLE  ALT=\"+3%2F5.495+=+%281.016%29%5Et+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+log%281.016%2C%283%2F5.495%29%29+=+t+ ALIGN=MIDDLE  ALT=\"+log%281.016%2C%283%2F5.495%29%29+=+t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+log%283%2F5.495%29%2Flog%281.016%29+=+t+ ALIGN=MIDDLE  ALT=\"+log%283%2F5.495%29%2Flog%281.016%29+=+t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+-38.13+=+t+ ALIGN=MIDDLE  ALT=\"+-38.13+=+t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
document.write( "1980-38.13 = 1941.87 = 1942<BR>\n" );
document.write( "Answer is c\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );