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Alecsey [184]
3 years ago
6

The square root of the sum of a number is 4 is 5. Find the number. What is it?

Mathematics
1 answer:
anzhelika [568]3 years ago
7 0

Answer:   21

<u>Step-by-step explanation:</u>

\sqrt{n+4}=5\\\\(\sqrt{n+4})^2=(5)^2\\\\n+4=25\\.\underline{\ \ -4\ \ -4}\\\boxed{n\quad \ =\ 21}

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Step-by-step explanation:

In this case what we must do is calculate the probability of eating a jelly treats first and then another jelly treats, being the final probability the multiplication of these events.

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9/20 * 8/19 = 0.1895

So the probability of this happening is 18.95%

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