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Anna [14]
3 years ago
15

ILL GIVE BRAINLIEST PLZ HELP.

Biology
2 answers:
coldgirl [10]3 years ago
6 0

Answer:

11,400 years old

Explanation:

The total  number of atoms present at the beginning = number of C-14 + number of N-14 atoms.

Hence;

1500 + 500 = 2000 atoms = No

At time t, N = 500 atoms of C-14 remains

Since the half life of C-14 (t1/2) = 5700 years

N/No = (1/2)^t/t1/2

500/2000 =  (1/2)^t/5700

1/4 = (1/2)^t/5700

(1/2)^2 =(1/2)^t/5700

2 = t/5700

t = 2 * 5700

t = 11,400 years old

White raven [17]3 years ago
4 0

Answer:

5700

Explanation:

I just did the question on a pe x.

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