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MAXImum [283]
2 years ago
5

Help help help help help help help

Mathematics
1 answer:
earnstyle [38]2 years ago
8 0

Answer:

The first one is 90, and the second one is 150

Explanation:

40% of 90 is 36, and

40% of 150 is 60.

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Which pair of inequalities would overlap if they were graphed?
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D is the

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The age of Carlos doubled plus his brother is equal to 25 how old are they
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Carlos is 8 , his brother is 9

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2x + y =25

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a scientist in Asia discovered the skeleton of a Saber-Tooth Tiger that contains 54% of its original amount of C-14. Find the ag
PIT_PIT [208]
Answer is:
6162 years

Explanation:
The given equation to use is:
<span>N=Noe^-kt
First, we will need to define the variables of the equation as follows:
No : original amount of C-14 (at t=0)
N : amount of C-14 at certain time (t)
k : a constant equals </span><span>0.0001
t : the time in years

Now, we are given that:
The skeleton contains 54% of it's original amount of C-14. This means that:
N/No = 54% = 0.54

Substitute with this given in the equation given, we will find that the only unknown is the time (t). We can now solve for t as follows:
</span><span>N=Noe^-kt
This can be rewritten as:
N/No = </span>e^-kt
Now,
N/No = e^-kt
0.54 = e^(-0.0001t)
Take ln for both sides:
ln (0.54) = -0.0001t
-0.61618 = -0.0001t
t = 6161.86 years which is approximately 6162 years

Hope this helps :)


3 0
3 years ago
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