document.write( "Question 591807: for 1.005^-n=.28125, how do you find n?? \n" ); document.write( "

Algebra.Com's Answer #375737 by nerdybill(7384) $\"\"$ $\"About$

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for 1.005^-n=.28125, how do you find n??
\n" ); document.write( " $\"1.005%5E%28-n%29=.28125\"$
\n" ); document.write( "take log base 1.005 to both sides:
\n" ); document.write( " $\"-n=log%281.005%2C.28125%29\"$
\n" ); document.write( " $\"n=-log%281.005%2C.28125%29\"$
\n" ); document.write( " $\"n=-log%28.28125%29%2Flog%281.005%29\"$
\n" ); document.write( " $\"n+=+254.34\"$
\n" ); document.write( " \n" ); document.write( "

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