2 years ago

38 is what percent of 40

1 answer:

7 0

Hi there! ;) The answer you are looking for is 95%. To get the answer, this is what I did: 38 divided by 40 and you get 0.95 or 95% (Because they are the same value.)

Hope it helped!:D I hope this made sense to you.

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lianna [129]

Answer:

The number of children are 4 out of which 3 are girls

Step-by-step explanation:

Data provided in the question:

P(Two randomly selected children are girls) = $\frac{1}{2}$

now,

let the number of children be 'n'

the number of girls be 'x'

thus,

P(Two randomly selected children are girls) = $\frac{^xC_2}{^nC_2}$ = $\frac{1}{2}$

also,

$^nC_r$ = $\frac{n!r!}{(n-r)!}$

thus,

$\frac{\frac{x!2!}{(x-2)!}}{\frac{n!2!}{(n-2)!}}$ = $\frac{1}{2}$

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now

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2(3)(3-1) = 4(4-1)

12 = 12

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therefore,

The number of children are 4 out of which 3 are girls

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2 years ago

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Answer:

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