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Answer:
64
Step-by-step explanation:
Your welcome
I would like to say 44, but Im not positive.
But, 44x25% would equal 11. And 44-11(aka 25%) would equal 33.
You may want to double check my work though. Hope this helps
It takes 16,064 years for the 500g of radium to decay to 5g.
<h3>
How long will it take for 500g of radium to decay to 5g?</h3>
Here we have the decay equation:
Where Q₀ is the initial amount, and k is the decay constant.
We know that:
Q₀ = 500g
k = 0.00043
And we want to find the value of t such that Q(t) = 5g, so we need to solve:
Now we can apply the natural logarithm in both sides:
So it takes 16,064 years for the 500g of radium to decay to 5g.
If you want to learn more about decays:
brainly.com/question/7920039
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Answer:0.80
Step-by-step explanation:please i don't really know how to explain this i am very sorry