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4 years ago

Pretest 5. In a group of 250 students, 40 are seniors. What percentage of the group are seniors?

Mathematics

1 answer:

zvonat [6]4 years ago

8 0

Answer:

$\%seniors = 16\%$

Step-by-step explanation:

Given

$Students = 250$

$Seniors = 40$

Required

Determine the percentage of seniors

This is calculated as thus;

$\%seniors = \frac{Seniors}{Students} * 100\%$

$\%seniors = \frac{40}{250} * 100\%$

$\%seniors = \frac{4000\%}{250}$

$\%seniors = 16\%$

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Answer:

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Step-by-step explanation:

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3 years ago

Make b the subject of the formula A=1/2bh

r-ruslan [8.4K]

Answer:

$\blue{b = \dfrac{2A}{h}}$

Step-by-step explanation:

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Step 1. Switch sides.

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Step 3. Since h is multiplying b, and you want b alone, divide both sides by h.

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Answer:

$b = \dfrac{2A}{h}$

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3 years ago

Please help with the questions in the image

iren2701 [21]

Step-by-step explanation:

This seems to be calculus 1.

Question a

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We do this by differentiating the polynomials. There are a few methods to do this but I am going to use the power rule, which we multiply the constant by the exponent on the variable and subtract one from the exponent.

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$y - 12 = 4(x - 1)$

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Now lets do the same for the Point (2, 13)

Find the slope at the point.

$m = -6x^2 + 10x$

$m = -6(2)^2 + 10(2)$

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Now find the tangent line using point slope form of a line.

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Now graph the lines, which I have done and you can see by viewing the image I have attached.

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3 years ago

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kati45 [8]

Answer:

(190-5a)°

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Sum of internal angles of a triangle equals to 180°

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3 years ago

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fiasKO [112]

Answer:

4206 is the answer of this question

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3 years ago

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Pretest 5. In a group of 250 students, 40 are seniors. What percentage of the group are seniors?​

Pretest 5. In a group of 250 students, 40 are seniors. What percentage of the group are seniors?