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Bond [772]
3 years ago
15

Jenny is 13 years older than her sister myra myra is 6 years younger than her sister melody their combined age is equal to 88 ye

ars how old is myra
Mathematics
2 answers:
vlabodo [156]3 years ago
8 0

Answer:

23

Step-by-step explanation:

il63 [147K]3 years ago
5 0
X : Myra age
Jenny : x+13
Melody : x+6
x + x + 13 + x + 6 = 88 \\ 3x + 19 = 88 \\ 3x = 69 \\ x = 23
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Bogdan [553]
A. z=5.5
25^(5.5-4)=125
25^(1.5)=125
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z=5.5
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What is 4million 2hunderd thousand 6 hundred 52 in digitss​
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For a dinner party, a catering company charges a set fee $150 plus $20 per person. How much will it cost for 35 people to attend
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A class is selling magazines as a fund raiser. Of the 500 magazines sold, Amy sold 1/9 of them. Garret sold 0.145 of the magazin
andrey2020 [161]
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maksim [4K]

Answer:

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Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

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This means that n = 100, \pi = \frac{42}{100} = 0.42

99% confidence level

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The lower limit of this interval is:

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The upper limit of this interval is:

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The 99% confidence interval for the true population proportion of people with kids is (0.293, 0.547).

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3 years ago
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