Question

a radioactive element has a half life of 50 days.What percentage of the original sample is left after 60 days

Answer 1

Answer:

43.5 %

Step-by-step explanation:

50 days is 1 half life. And ten days is 0.2 half lives.

So the total half life is 1.2. To find the division factor you put the half life as a power of 2. So it is $2^{1.2}$ = 2.29739671

Then you divide 100% by that number which gives you 43.52752816