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kodGreya [7K]
2 years ago
11

Paulo and Marie are collecting quarters. The number of quarters Paulo has is 3 times 5 fewer than the number of quarters Marie h

as. Let m be the number of quarters Marie has. What expression represents the number of quarters Paulo has?
Mathematics
1 answer:
Firlakuza [10]2 years ago
3 0

Answer:

Paulo = 3m - 5

Step-by-step explanation:

m = number of quarters Marie has

The number of quarters Paulo has is 3 times 5 fewer than the number of quarters Marie has

3 times number of quarters Marie has = 3 * m

= 3m

5 fewer than the number of quarters Marie has

3m - 5

Paulo = 3m - 5

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The radioactive element​ carbon-14 has a​ half-life of 5750 years. A scientist determined that the bones from a mastodon had los
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The bones at the time they were​ discovered when the radioactive element​ carbon-14 has a​ half-life of total 5750 years are 10062.5-year-old.

<h3>What is half-lives?</h3>

Half lives is the time interval which is need to decay the atomic nuclei of a radioactive sample.

There is a scientist who determined that the bones from a mastodon had lost 70.3​% of their​ carbon-14.  Thus, the fraction remaining is,

f=1-(70.3/100)=1-0.703

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Now the fraction remaining can be given as,

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n=1.75

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