A medical battery loses 5% of its power each week. How long will it take until only 20% of its power remains. Answer if you only know

asked Dec 10, 2017 222k views

4 votes

A medical battery loses 5% of its power each week. How long will it take until only 20% of

its power remains.

Answer if you only know

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$Log \ 0.2 = t \ log.95$

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(log0.2)/(log.95) = t

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$31.4 \ weeks = t$

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$Hence \ solved$

Kilon answered Dec 17, 2017

by Kilon

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