document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1130985>Question 1130985</A>: <I><SPAN STYLE=\"word-break: break-all;\"> During surgery, a patient's circulatory system requires at least 50 milligrams of an anesthetic. The amount of anesthetic present t hours after 70 milligrams of anesthetic is administered is given by the following.<BR>\n" );
document.write( "T(t) = 70(0.727)t<BR>\n" );
document.write( "(a) How much, to the nearest milligram, of the anesthetic is present in the patient's circulatory system 20 minutes after the anesthetic is administered?_____mg<BR>\n" );
document.write( "b) How long, to the nearest minute, can the operation last if the patient does not receive additional anesthetic?_____min </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #747607 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</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=747607\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is your formula as stated:  T(t) = 70(0.727)t\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "More likely the formula you are given is T(t) = 70(0.727)^t and appears when rendered as  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T%28t%29+=+70%280.727%29%5Et ALIGN=MIDDLE  ALT=\"T%28t%29+=+70%280.727%29%5Et\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "(a) :<BR>\n" );
document.write( "----------<BR>\n" );
document.write( "How much, to the nearest milligram, of the anesthetic is present in the patient's circulatory system 20 minutes after the anesthetic is administered?_____mg<BR>\n" );
document.write( "---------\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "20 minutes is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F3 ALIGN=MIDDLE  ALT=\"1%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=hour ALIGN=MIDDLE  ALT=\"hour\"   DISABLED_style= \"max-width:90%; height:auto;\" >, so evaluate T for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=1%2F3 ALIGN=MIDDLE  ALT=\"t=1%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "(b):<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "How long, to the nearest minute, can the operation last if the patient does not receive additional anesthetic?<BR>\n" );
document.write( "-----\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "This means, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T%28t%29=50 ALIGN=MIDDLE  ALT=\"T%28t%29=50\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and yuo want to solve for t.<BR>\n" );
document.write( "Try taking logs of both sides of the equation to start this.  Remember, you are finding t in HOURS so convert your solution into minutes. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );