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zimovet [89]
2 years ago
14

The half-life of a radioactive isotope is the time it takes for a quantity of the Isotope to be reduced to half Its Initial mass

. Starting with 165 grams of a
radioactive isotope, how much will be left after 3 half-lives??
Mathematics
1 answer:
mariarad [96]2 years ago
6 0

\stackrel{\textit{half of 165}}{165\cdot \cfrac{1}{2}}~\hfill \stackrel{\textit{half of half of 165}}{165\cdot \cfrac{1}{2}\cdot \cfrac{1}{2}}~\hfill \stackrel{\textit{half of half of half of 165}}{165\cdot \cfrac{1}{2}\cdot \cfrac{1}{2}\cdot \cfrac{1}{2}} \\\\\\ 165\cdot \cfrac{1}{8}\implies \cfrac{165}{8}\implies 20.625~grams

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Answer:

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Step-by-step explanation:

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If a cow weighs 300 pounds how many would 6000 cows weigh
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4 years ago
The scouts packed 9 boxes of different kinds of chips for their trip. Each box had 10 bags of chips. These clues show what they
Katarina [22]

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<h3>How to determine the number of bags of chips?</h3>

The given parameters are:

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This represents:

Potato chips = 2 * 10 + 3

Potato chips = 23 i.e. 23 bags potato chips are left over

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This represents

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Read more about algebra equations at:

brainly.com/question/953809

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2 years ago
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Step-by-step explanation:

4 0
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Read 2 more answers
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