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2 years ago

Thirty percent of all the

Mathematics

1 answer:

Ilya [14]2 years ago

3 0

Answer:

180 of the drinks sold were soda

Step-by-step explanation:

if we divide 600 by 0.30, which is 30%, we would get 180, so your answer would be 180.

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A media poll of 500 air travelers surveyed in national airports found that 370 favor tighter security procedures in boarding pla

serg [7]

Answer:

92% Confidence interval: (0.7078,0.7722)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 500

Number of travelers who favor tight security, x = 370

$\hat{p} = \dfrac{x}{n} = \dfrac{370}{500} = 0.74$

92% Confidence interval:

$\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$z_{critical}\text{ at}~\alpha_{0.08} = \pm 1.645$

Putting the values, we get:

$0.74\pm 1.645(\sqrt{\dfrac{0.74(1-0.74)}{500}}) = 0.74\pm 0.0322\\\\=(0.7078,0.7722)$

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3 years ago

Which brother ate more grapes.1.438 pounds and his brother ate 1.44 pounds?

Taya2010 [7]

1.44 is more than 1.438 so the second brother

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2 years ago

Select the correct answer,<br> How does the figure verify the triangle inequality theorem?

skelet666 [1.2K]

Step-by-step explanation:

just think it through. it can only be the first option. the sides 7 and 4 are together 11, and they can only meet, when putting them flat on the 11 side. but yes, if you do that, they will meet, as 11 = 11.

the result would be an extreme triangle : appearing just as one, flat line (length 11), the angles being 180°, 0° and 0°.

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2 years ago

Which correctly represents the probability 1 as a percent?

In-s [12.5K]

Answer:

0.01

Step-by-step explanation:

if you meant a to be .01 than it's that good luck

5 0

2 years ago

Read 2 more answers

Write and solve a proportion to answer the question. 40 is what percent of 32?

Ulleksa [173]

Answer:

125 percent

Step-by-step explanation:

The proportion is

40 percent

------ = ----------

32 100

Using cross products

40*100 =32 * percent

Divide by 32

4000/32 = percent

125 = percent

8 0

2 years ago