Therefore, the bones were 6612.5 years old at the time they were discovered.
<h3><u>Half life</u></h3>
Given that the radioactive element carbon-14 has a half-life of 5750 years, and a scientist determined that the bones from a mastodon had lost 57.5% of their carbon-14, to determine how old were the bones at the time they were discovered, the following calculation must be made:
- 50 = 5750
- 100 = 11500
- 57.5 = X
- 57.5 x 11500 / 100 = X
- 6612.5 = X
Therefore, the bones were 6612.5 years old at the time they were discovered.
Learn more about half life in brainly.com/question/24710827
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Answer:
824
Step-by-step explanation:
the answer is 824
Answer:
3
Step-by-step explanation:
(6a+9)-7b
There are 3 terms
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1/8 i think it is good bye
