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NNADVOKAT [17]
3 years ago
7

The height of a prism with equilateral triangular base is 25 cm. If the perimeter of the base of the prism is 18 cm, find the vo

lume​
Mathematics
1 answer:
GalinKa [24]3 years ago
5 0

Answer:

450cm^{3}

Step-by-step explanation:

The volume of prism is Base times the height.

The Base you count from surface area. The formula is a*b/2. The a is 18/3, because you have the equilateral triangle. So you count 6*6/2 and get 18 square cm.  

After that you just multiply 18 and 25 and get 450cm^{3}

I hope this is right

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3 years ago
 In a​ company, 80​% of the workers are women. If 480 men work for the​ company, how many workers are there in​ all? Use pencil
nekit [7.7K]

Answer:

The total workers are<u> 2400.</u>

Step-by-step explanation:

Given:

In company 80% of the workers are women.

480 workers are men.

Now, to find the total workers in all.

<u><em>In first way:</em></u>

If women are 80%, then men would be 100-80 = 20%.

Let the total workers be x.

According to question:

20\%\ of \ x=480

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⇒0.20\times x=480

⇒0.20x=480

Dividing both sides by 0.20 we get:

⇒x=2400.

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<em><u>Now, in second way</u></em>.

Again, let the total workers be  x.

According to question:

x-80\%\ of\ x=480

⇒x-\frac{80}{100}\times x=480

<em>On solving:</em>

⇒x-0.80x=480

⇒0.20x=480

<em>Dividing both sides by 0.20 we get:</em>

⇒x=2400.

<em>Total workers = 2400.</em>

Therefore, the total workers are <u>2400</u>.

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Section 7a

Step-by-step explanation:

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have a good day

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