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4 years ago

16.9 is what percent of 22.9? Round to the nearest percent.

Mathematics

2 answers:

Alex17521 [72]4 years ago

8 0

Answer:

74%

Step-by-step explanation:

22.9=100%

16.9= ?

16.9×100÷22.9=73.8

Round to the nearest % =73.8=74

Answer =74%

podryga [215]4 years ago

5 0

Answer:

74%

Step-by-step explanation:

16.9/22.9。。。。。。。

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Help plz???? never learned this

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3 years ago

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choose the point-slope form and f the equation below that represents the line through the point (6,-3) and has a slope of 1/2

AveGali [126]

Answer:

The point-slope form of this equation would be y + 3 = 1/2(x - 6)

Step-by-step explanation:

In order to find this, start with the base form of point-slope form.

y - y1 = m(x - x1)

Now input the slope for m and the point for (x1, y1)

y - -3 = 1/2(x - 6)

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4 years ago

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Yoonie is a personnel manager in a large corporation. Each month she must review 16 of the employees. From past experience, she

Anarel [89]

Answer:

$P(3.25 < \bar X < 4.25)$

And we can use the z score formula given by:

$z = \frac{\bar X -\mu}{\sigma_{\bar X}}$

And using the z score we have:

$P(\frac{3.5-4}{0.3}< Z< \frac{4.25-4}{0.3}) = P(-1.667< Z< 0.833)$

And we can use the normal standard distribution table or excel in order to find the probabilities and we got:

$P(-1.667< Z< 0.833)= P(Z$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the time it takes her to complete one review, and for this case we know the distribution for X is given by:

$X \sim N(4,1.2)$

Where $\mu=4$ and $\sigma=1.2$

And we select a sample size of n =16. Since the dsitribution for X is normal then the distribution for the sample mean $\bar X$ is also normal and given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

$\sigma_{\bar X}= \frac{1.2}{\sqrt{16}}= 0.3$

For this case we want to find this probability:

$P(3.25 < \bar X < 4.25)$

And we can use the z score formula given by:

$z = \frac{\bar X -\mu}{\sigma_{\bar X}}$

And using the z score we have:

$P(\frac{3.5-4}{0.3}< Z< \frac{4.25-4}{0.3}) = P(-1.667< Z< 0.833)$

And we can use the normal standard distribution table or excel in order to find the probabilities and we got:

$P(-1.667< Z< 0.833)= P(Z$

The graph illustrating the problem is on the figure attached.

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3 years ago

Jack and Susie want to save to buy a trampoline for their children. They each open a savings account that earns 1.5% a

olasank [31]

Answer:

$1,800(1.015)^{x}$

Step-by-step explanation:

we have

$f(x)=1,000(1.015)^{x}$

$g(x)=800(1.015)^{x}$

we know that

To find the function that represent the total amount Jack and Suzie will save in x years, adds f(x) and g(x)

$f(x)+g(x)=1,000(1.015)^{x}+800(1.015)^{x}$

$f(x)+g(x)=[1,000+800](1.015)^{x}$

$f(x)+g(x)=1,800(1.015)^{x}$

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4 years ago

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KIM [24]

Answer: Scalene triangle

Step-by-step explanation:

A Scalene triangle has all of its three lengths to be different. The traingle above can not be an equilateral triangle too because all the sides aren't equal.

Also, it's not an isosceles triangle since two of its sides are not thesame. It's not a right angle triangle as the square of the hypothenuse isn't equal to the addition of the square of the other two sides.

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3 years ago