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frosja888 [35]
3 years ago
7

What percentage of 67.5 is 7.02? 27 is 144% of what?

Mathematics
1 answer:
djverab [1.8K]3 years ago
7 0
\begin{array}{ccc}67.5&-&100\%\\\\7.02&-&p\%\end{array}\ \ \ |cross\ multiply\\\\\\67.5p=7.02\cdot100\\\\67.5p=702\ \ \ \ \ |divide\ both\ sides\ by\ 67.5\\\\p=10.4\ (\%)

Answer: 7.02 is 10.4% of 67.5.
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Theorem: the sum of any two even integers equals 4k for some integer k. "proof: suppose m and n are any two even integers. by de
icang [17]

Remark

The proof is only true if m and n are equal. Make it more general.

m = 2k

n = 2v

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There are 4 combinations

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m is not divisible by 4 but n is. The result will not be divisible by 4.

But are divisible by 4 then the sum will be as well. Here's the really odd result

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What is 327÷36 for math class
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A bowling leagues mean score is 197 with a standard deviation of 12. The scores are normally distributed. What is the probabilit
Bond [772]

Answer:

0.281 = 28.1% probability a given player averaged less than 190.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

A bowling leagues mean score is 197 with a standard deviation of 12.

This means that \mu = 197, \sigma = 12

What is the probability a given player averaged less than 190?

This is the p-value of Z when X = 190.

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Z = -0.58 has a p-value of 0.281.

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8 0
3 years ago
Problem page the length of a rectangle is four times its width. if the perimeter of the rectangle is 70 cm , find its area.
agasfer [191]
So we can call the width of the rectangle x.
So then the length would be 4x.
The perimeter would then be 10x.
Since the perimeter is 70, we can say 70 = 10x.
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So to find the area, just multiply length by width.
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I hope I helped!
5 0
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