document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=697460>Question 697460</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A scientist has 200 grams of a substance which has half-life of 5yrs. The graph of its decay function is represented by the equation y=ab^x where x is the number of 15 yr periods. What are the values of a and b  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #430029 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=430029\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A scientist has 200 grams of a substance which has half-life of 5yrs. The graph of its decay function is represented by the equation y=ab^x where x is the number of 15 yr periods. What are the values of a and b <BR>\n" );
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document.write( "y = ab^x<BR>\n" );
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document.write( "y = 200(1/2)^(t/5)<BR>\n" );
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document.write( "y = 200[(1/2)^(1/5)]^t<BR>\n" );
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document.write( "a = 200<BR>\n" );
document.write( "b = (1/2)^(1/5) <BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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