Time remaining:
Find the half-life of an element which decays by 3.415% each day

Mathematics
Tutor: None Selected Time limit: 1 Day

Have to fine the number of days.

Oct 6th, 2014

1 day---->3.415% 
=> x days---->50% 

cross multiplying, 

x=(50*1)/3.415 
=14.641 days

Oct 6th, 2014

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Oct 6th, 2014
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