document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=150022>Question 150022</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A contagious disease is infecting residents of a town of 7,300 residents.\r<BR>\n" );
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document.write( "The number of residents infected t days after the disease has begun is given by the function  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%28t%29=%287300%29%2F%281%2B500e%5E%28-0.5t%29%29 ALIGN=MIDDLE  ALT=\"f%28t%29=%287300%29%2F%281%2B500e%5E%28-0.5t%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "How many residents are infected with the disease after 6 days?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #110111 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=110111\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%28t%29=%287300%29%2F%281%2B500e%5E%28-0.5t%29%29 ALIGN=MIDDLE  ALT=\"f%28t%29=%287300%29%2F%281%2B500e%5E%28-0.5t%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Start with the given equation.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%286%29=%287300%29%2F%281%2B500e%5E%28-0.5%286%29%29%29 ALIGN=MIDDLE  ALT=\"f%286%29=%287300%29%2F%281%2B500e%5E%28-0.5%286%29%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Plug in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=6 ALIGN=MIDDLE  ALT=\"t=6\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%286%29=%287300%29%2F%281%2B500e%5E%28-3%29%29 ALIGN=MIDDLE  ALT=\"f%286%29=%287300%29%2F%281%2B500e%5E%28-3%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Multiply -0.5 and 6 to get -3\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%286%29=%287300%29%2F%281%2B500%280.04979%29%29 ALIGN=MIDDLE  ALT=\"f%286%29=%287300%29%2F%281%2B500%280.04979%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Raise \"e\" to the negative 3rd power to get 0.04979\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%286%29=%287300%29%2F%281%2B24.895%29 ALIGN=MIDDLE  ALT=\"f%286%29=%287300%29%2F%281%2B24.895%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Multiply 500 and 0.04979 to get 24.895\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%286%29=%287300%29%2F%2825.895%29 ALIGN=MIDDLE  ALT=\"f%286%29=%287300%29%2F%2825.895%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Add 1 to 24.895 to get 25.895\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%286%29=281.9077 ALIGN=MIDDLE  ALT=\"f%286%29=281.9077\"   DISABLED_style= \"max-width:90%; height:auto;\" > Divide\r<BR>\n" );
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document.write( "So rounding to the nearest whole number (since 0.9077 of a person doesn't make sense), we get 282 people. \r<BR>\n" );
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document.write( "So after 6 days, about 282 residents are infected.\r<BR>\n" );
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