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Sergeeva-Olga [200]
3 years ago
14

You are given the following data about Group B. 28 students in Group B have taken Math 2A, 28 have taken Math 2B, and 25 have ta

ken Math 2C. 11 have taken both Math 2A and 2B, 9 have taken both Math 2A and 2C, and 10 have taken both Math 2B and 2C. 3 have taken all three classes. How many students are in Group B?

Mathematics
1 answer:
Allisa [31]3 years ago
4 0

Answer:

54

Step-by-step explanation:

n(AUBUC= n(A) + n(B) + n(C) - n(A^B) - n(A^C) - n(B^C) + n(A^B^C)

28 + 28 + 25 - 11 - 10 - 9 + 3 = 54

If you don't know the formula, use venn diagram

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School chorus has 90 sixth-grade students and 75 seventh-grade students. The music director wants to make groups of performers,
inn [45]

Answer:

90 + 75 = 165

165 divided by 3 = 55

4 0
3 years ago
Doug lives 7. Block away from his school . Each block is about 265 feet long. What is total round-trip dostance,in miles that Do
olga_2 [115]

Answer:

B : 0.7

Step-by-step explanation:

Given:

Doug lives 7. Block away from his school.

Each block is about 265 feet long.

Question asked:

What is total round-trip distance,in miles that Doug walks to and from school each day ?

Solution:

Each block is about = 265 feet

7 Block = 265\times7 = 1855 \ feet

As he lives 7 block away from his school that means his round trip distance is,

7 block ( travel during going to school ) + 7 block ( when return from school )

<em>Therefore, his total round trip is 14 block, means 1855 feet + 1855 feet = 3710 feet.</em>

Now, we have to convert it into miles as here asked: (unitary method)

5280 feet = 1 mile

1 feet = \frac{1}{5280}

3710 feet = \frac{1}{5280}\times3710

               = \frac{3710}{5280} = 0.7 \ miles

Thus, total round-trip distance,in miles that Doug walks to and from school each day is 0.7 miles.

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Give a girl gave me head would I get any disease
stiks02 [169]

Answer:

No, but you could give her a disease. You should get tested before any type of sexual interaction

Step-by-step explanation:

6 0
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Find the area of the rhombus.
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The answer is c
the rhombus above is formed by 4 triangles
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Joshua is 11 and Mckay is 10.

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