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3 years ago

How do you write 148/20 as a percentage?

Mathematics

2 answers:

Natalija [7]3 years ago

7 0

20 goes into 100 5 times so like this:

20×5=100 148×5=740 740/100=740%

valkas [14]3 years ago

4 0

I think it might be 29.6%

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A jar holds no more than 500 buttons. If 5 people bring 330 buttons each, how many jars are necessary to hold all of the buttons

Strike441 [17]

Answer:

We know

1 jar = 500 buttons

5 people bring 330 buttons EACH

We can find/solve by...

people x buttons = total buttons

total buttons / 500 = number of jars needed

So..

5 x 330 = 1650

1650 / 500 = 3.3

Your answer:

4 jars

Explanation

It's impossible to have 3.3 jars, so you must round up.

Step-by-step explanation:

8 0

3 years ago

/viewform?hr submission=Chclk4feKBIQ.

Gennadij [26K]

Answer:

c) .22

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.025 = 0.975$ , so $z = 1.96$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

In this question:

$\sigma = 2.5, n = 500$

Then

$M = z*\frac{\sigma}{\sqrt{n}}$

$M = 1.96*\frac{2.5}{\sqrt{500}}$

$M = 0.22$

5 0

3 years ago

1248 buttons 8 contains how many buttons will go into each contain<br><img src="https://tex.z-dn.net/?f=1248%20%5Cdiv%208%20%3D%

Oksanka [162]

Answer:

156 buttons in each container

Step-by-step explanation:

$\frac{1248}{8} = 156$

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3 years ago

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andrew11 [14]

Answer:

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2 years ago

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Elodia [21]

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_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

$10abc^2\sqrt{49a^2b^2c^2}$

$\sqrt{49a^2b^2c^2}=7abc$

$7\cdot \:10aabbc^2c$

$70aabbc^2c$

$70a^2bbc^2c$

$70a^2b^2c^2c$

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3 years ago

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