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viva [34]
3 years ago
5

The ratio of women to men in this university is 60:40, suppose the number of students in this class is 20, and i ask what number

x of women would make this class 60:40.
Mathematics
1 answer:
BabaBlast [244]3 years ago
4 0
3:2 ratio --> the answer is 12 btw
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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
Gnesinka [82]

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

f=1-(70.3/100)=0.297

Now the fraction remaining can be given as,

f=(1/2)ⁿ

Here, n is the half life elapsed. Put the value of fraction remaining.

0.297=(1/2)ⁿ

n=1.75

The radioactive element​ carbon-14 has a​ half-life of total 5750 years. Thus,

Years=1.75*5750

Years=10062.5

Thus, 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.

Learn more about the half lives here;

brainly.com/question/2320811

#SPJ1

6 0
2 years ago
Heyy! i’ll give brainliest please help.
san4es73 [151]

Answer:

The answer is B.

Step-by-step explanation:

Its B because the lower the altitude the higher the pressure, and in this case the air towards the ground is being moved up, which is letting cold air sink back down.

8 0
3 years ago
Carrie is finding the set of even numbers within the set of prime numbers. Of the sets described, which is the universal set?
gogolik [260]
Even numbers are considered divisible by 2
Prime numbers are numbers divisible by 1
Considering that in this situation, we only need positive numbers, 2 is the only number. It is even and also prime.

Therefore prime numbers
5 0
3 years ago
3(20-b)=36<br> I need help on this question!!
Daniel [21]
3(20 - b) = 36
60 - 3b = 36
-3b = 36 - 60
-3b = - 24
b = -24/-3
b = 8 <==
8 0
3 years ago
Select the correct answer.
kifflom [539]

Answer:

<u>I</u><u>t</u><u> </u><u>i</u><u>s</u><u> </u><u>1</u><u>0</u><u>√</u><u>2</u>

Step-by-step explanation:

=  \sqrt{200}  \\  =  \sqrt{2 \times 100}  \\  = ( \sqrt{2} ) \times ( \sqrt{100} ) \\  =  \sqrt{2}  \times 10 \\  = 10 \sqrt{2}

8 0
3 years ago
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