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Sunny_sXe [5.5K]
2 years ago
9

12 is he 60 % of this number

Mathematics
2 answers:
ioda2 years ago
8 0

Answer:

20

Step-by-step explanation:

10 percent = 2 (for this problem anyways)

So the remaining amount is 8, which leaves us with 12.

Basile [38]2 years ago
5 0

60 percent (calculated percentage %) of what number equals 12. Answer: 20.

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jenyasd209 [6]
Y-Intercept= -9

Your equation is Y=mx+b, and b is the Y-Intercept
8 0
2 years ago
An open-top rectangular box with square base is to be made from 100 square feet of material, as shown.
-Dominant- [34]

The largest possible volume of the given box is; 96.28 ft³

<h3>How to maximize volume of a box?</h3>

Let b be the length and the width of the base (length and width are the same since the base is square).

Let h be the height of the box.

The surface area of the box is;

S = b² + 4bh

We are given S = 100 ft². Thus;

b² + 4bh = 100

h = (100 - b²)/4b

Volume of the box in terms of b will be;

V(b) = b²h = b² * (100 - b²)/4b

V(b) = 25b - b³/4

The volume is maximum when dV/db = 0. Thus;

dV/db = 25 - 3b²/4

25 - 3b²/4 = 0

√(100/3) = b

b = 5.77 ft

Thus;

h = (100 - (√(100/3)²)/4(5.77)

h = 2.8885 ft

Thus;

Largest volume = [√(100/3)]² * 2.8885

Largest Volume = 96.28 ft³

Read more about Maximizing Volume at; brainly.com/question/1869299

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4 0
1 year ago
Which number is between 8.270 and 8.280
Nezavi [6.7K]

Answer:

8.275

Step-by-step explanation:

8.280 - 8.270 = 0.010

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8.270 + 0.005 = 8.275

8 0
2 years ago
For a certain online store, the distribution of number per hour is approximately normal with mean 1200 purchases and standard de
Advocard [28]

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When we have a normal distribution, the 100% of our sample will be placed in a "gaussian bell".

Where the middle of this bell coincides with the mean.

The mean, in this case, is 1200, and the standard deviation is 200.

In the image below you can see that between the points.

Mean + standard deviation and the end of the graph, we have:

13.5% + 2.35% + 0.15% = 16%

And particularly, if we want to know the percentage that exceed 1400, will be the same percentage above the mean plus the standard deviation.

mean = 1200

SD = 200

mean + standard deviation = 1200 + 200 = 1400.

Then the percentage that exceeds 1400 is equal to the percentage that we found above, then the correct option is C: 16%

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3 years ago
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I took this test the answer is 92.
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