Not sure what you mean by "had-lives". After 3 half lives, approx 1/8 would remain.
One eighths.
about 1/8
One eighth.
It tells what fraction of a radioactive sample remains after a certain length of time.
The fraction that remains is 1/8.
It is 1/8 .
1/8 of the original amount remains.
It tells what fraction of a radioactive sample remains after a certain length of time.
3.1 %
An eighth remains.
This fraction is 12,5 %.
30,000
1.5% remains after 43.2 seconds.
Approx 1/8 will remain.
One eighth remains.