document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1003537>Question 1003537</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Certain drugs are eliminated from the bloodstream at an exponential rate. Doctors and pharmacists need to know how long it takes for a drug to reach a certain level to determine how often patients should take medications. Answer the following questions about this situation. <BR>\n" );
document.write( "Write an exponential model for the following situation. The drug dosage is 500 mg. The drug is eliminated at a rate of 5.2% per hour. Use D = the amount of the drug in milligrams and t = time in hours. \r<BR>\n" );
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document.write( "How much of the drug is left after 6 hours? Round to the nearest milligram.<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 #620228 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=620228\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The retention rate of the drug is  100-5.02=94.8% per hour.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28D=500%2A%280.948%29%5Et%29 ALIGN=MIDDLE  ALT=\"highlight%28D=500%2A%280.948%29%5Et%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "The question asks for D when t=6.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=D=500%280.948%29%5E6 ALIGN=MIDDLE  ALT=\"D=500%280.948%29%5E6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=D=500%2A0.725855252786417664 ALIGN=MIDDLE  ALT=\"D=500%2A0.725855252786417664\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "You can only take three significant figures:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28363%2Amilligrams%29 ALIGN=MIDDLE  ALT=\"highlight%28363%2Amilligrams%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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