document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1081191>Question 1081191</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve,\r<BR>\n" );
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document.write( "(a) 1=300(0.8)^t\r<BR>\n" );
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document.write( "(b) 5^n= 0.01\r<BR>\n" );
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document.write( "c) 250(1.03)^n=400\r<BR>\n" );
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document.write( "d) 25 = 200(0.5)^t/5730\r<BR>\n" );
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document.write( "Thanks </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #695316 by </B><A HREF=/tutors/aboutme.mpl?userid=jorel1380><B>jorel1380(3719)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jorel1380><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/cgi-bin/show-face.mpl?user=jorel1380><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=695316\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a)1=300(0.8)^t<BR>\n" );
document.write( "1/300=(0.8)^t<BR>\n" );
document.write( "ln 1/300=ln (0.8)^t=t ln 0.8<BR>\n" );
document.write( "t=ln 0.00333/ln 0.8=25.56<BR>\n" );
document.write( "b)5^n=.01<BR>\n" );
document.write( "ln 5^n=ln .01<BR>\n" );
document.write( "n ln 5=ln .01<BR>\n" );
document.write( "n=ln 0.01/ln 5=-2.8613531161467861013402131375279<BR>\n" );
document.write( "c)250(1.03)^n=400<BR>\n" );
document.write( "1.03^n=1.6<BR>\n" );
document.write( "ln 1.03^n=ln 1.6<BR>\n" );
document.write( "n=ln 1.6/ln 1.03=15.9<BR>\n" );
document.write( "d)25=200(0.5)^t/5730<BR>\n" );
document.write( "716.25=0.5^t<BR>\n" );
document.write( "ln 716.25=ln 0.5^t<BR>\n" );
document.write( "t=ln 716.25/ln 0.5=-9.4843194236442672185828361184889<BR>\n" );
document.write( "&#9786;&#9786;&#9786;&#9786; </SPAN>\n" );
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