document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1194724>Question 1194724</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Gallium-67 is used in nuclear medicine to help doctors locate inflammation and chronic infections. The patient is injected with a tracer (trace amount) that includes gallium-67, which collects in areas of inflammation and infection. The gallium-67 emits radiation that a special camera can detect. Gallium-67 has a half-life of 3.26 days.\r<BR>\n" );
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document.write( "- Give an exponential equation to represent the percentage of the original gallium-67 after t days.\r<BR>\n" );
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document.write( "- Determine the amount of gallium-67 left after 4 days.\r<BR>\n" );
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document.write( "-Solve your equation to determine the time it will take for there to be 1% of the original gallium-67.<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 #826976 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=826976\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Half-life of Gallium-67 is 3.26 days.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=p%2Ae%5E%28kt%29 ALIGN=MIDDLE  ALT=\"A=p%2Ae%5E%28kt%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=decay ALIGN=MIDDLE  ALT=\"decay\"   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=-0.693147=3.26k ALIGN=MIDDLE  ALT=\"-0.693147=3.26k\"   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=k=-0.693147%2F3.26 ALIGN=MIDDLE  ALT=\"k=-0.693147%2F3.26\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Revised decay equation:  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28A=pe%5E%28-0.21262t%29%29 ALIGN=MIDDLE  ALT=\"highlight%28A=pe%5E%28-0.21262t%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "time t in days<BR>\n" );
document.write( "p original amount<BR>\n" );
document.write( "A amount after time t </SPAN>\n" );
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