2 years ago

Sixty percent means the same as _______.

1 answer:

ycow [4]2 years ago

3 0

60% - 3/5
Hope this help, don't really know what your expecting the answer to be

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Furkat [3]

Can you retype whatever you’re asking in this please?

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trasher [3.6K]

-40 i think.............. im not positive but i did my best

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Iteru [2.4K]

Let

$P(n):\ 1+2+\ldots+n = \dfrac{n(n+1)}{2}$

In order to prove this by induction, we first need to prove the base case, i.e. prove that P(1) is true:

$P(1):\ 1 = \dfrac{1\cdot 2}{2}=1$

So, the base case is ok. Now, we need to assume $P(n)$ and prove $P(n+1)$ .

$P(n+1)$ states that

$P(n+1):\ 1+2+\ldots+n+(n+1) = \dfrac{(n+1)(n+2)}{2}=\dfrac{n^2+3n+2}{2}$

Since we're assuming $P(n)$ , we can substitute the sum of the first n terms with their expression:

$\underbrace{1+2+\ldots+n}_{P(n)}+n+1 = \dfrac{n(n+1)}{2}+n+1=\dfrac{n(n+1)+2n+2}{2}=\dfrac{n^2+3n+2}{2}$

Which terminates the proof, since we showed that

$P(n+1):\ 1+2+\ldots+n+(n+1) =\dfrac{n^2+3n+2}{2}$

as required

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3 years ago

Tasya [4]

Mean 87.5
Median 88
Range 14
and Mode All values appeared just once

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never [62]

Answer: 0=0

Step-by-step explanation:

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