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3 years ago

Myra can fill 180 glasses with 12 container of ice tea. How many glasses can she fill with 30 container of tea?

Mathematics

1 answer:

slega [8]3 years ago

8 0

Answer:

2 containers

Step-by-step explanation:

There are many methods to solve this, but this is by far my favorite. Take them and turn it into a ratio. 180:12

Reduce it to be 30:x, when x is the unknown.

Figure out that 180/6 is the 30 we need. Then take 12/6 and get 2. So your new ratio is 30:2.

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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.

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$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

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$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

$M = 1.96\sqrt{\frac{0.5618*0.4382}{2161}}$

$M = 0.0209$

The margin of error for the 95% confidence interval used to estimate the population proportion is of 0.0209.

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