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" );
document.write( "\n" );
document.write( "How much of the drug is left after 6 hours? Round to the nearest milligram.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #620229 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=620229\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Write an exponential model for the following situation. <BR>\n" );
document.write( "The drug dosage is 500 mg. <BR>\n" );
document.write( "The drug is eliminated at a rate of 5.2% per hour.<BR>\n" );
document.write( "Note: 100%-5.2% = 0.0948 <BR>\n" );
document.write( "Use D = the amount of the drug in milligrams and t = time in hours.<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "D(t) = 500*(0.948)^t<BR>\n" );
document.write( "------- <BR>\n" );
document.write( "How much of the drug is left after 6 hours? Round to the nearest milligram.<BR>\n" );
document.write( "D(6) = 500*0.948^6 = 362.93 ml<BR>\n" );
document.write( "----------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "---------------- </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );