Answer:
what is your question telll
The percentage of the original sample that is left after 115 days is; 23.4733%
<h3>How to calculate the decay percentage?</h3>
Formula for radioactive decay is;
A = A₀ * (1/2)^(t/t_¹/₂)
where;
A = quantity of the substance remaining
A₀ = initial quantity of the substance
t = time elapsed
t_¹/₂ = half life of the substance
Thus;
A/A₀ = (1/2)^(115/55)
A/A₀ = 0.234733 or 23.4733%
Read more about decay constant at; brainly.com/question/11117468
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30*4=120 not 129
So if we use a calculator the correct answer is 32 1/4
She eats 45 grams of proteins per day. There is 17 days.
Multiply the two numbers together.
45 x 17 = 765.
the Athlete eats 765 grams of protein during those 17 days of training.
hope this helps
I'm gonna use c for circle, t for triangle, and s for square
c+t+s=13
t+s=8
c+8=13
c=5
c+t=7
t=2
s=6
circle is 5, triangle is 2, and square is 6
