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stira [4]
3 years ago
10

In a classroom of 28 students: 19 of the students have brown eyes 13 of the students wear glasses 7 of the students do not have

brown eyes or glasses how many brown-eyed students wear glasses? answer
Mathematics
2 answers:
V125BC [204]3 years ago
7 0

Total students = 28

Students with brown eyes = 19

students wear glasses = 13

Not brown eyes or no glasses = 7


Not brown eyes = 28 - 19 = 9

Not wearing glasses = 28 - 13 = 15

Not brown eyes and wearing glasses = 15 - 9 = 6

Brown eyes and wearing glasses = 13 - 6 = 7 <==== answer

AnnyKZ [126]3 years ago
5 0

Answer:7 is the answer

Step-by-step explanation:

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ipn [44]

Answer:

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How do you do <br> (2/3) (-4) (9)
DochEvi [55]

Answer:

Since 3 is evenly divided by 9, we can multiply just one term to get a common denominator. Multiply 2 by 3, and get 6, then we multiply 3 by 3 and get 9.

Step-by-step explanation:

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3 years ago
Clare has a recipe for yellow cake. She uses 913 cups of flour to make 4 cakes. Noah will follow the same recipe. He will make c
sergejj [24]

Answer:

(C)c= \frac{3}{7}f

Step-by-step explanation:

Clare uses 9\frac{1}{3} cups of flour to make 4 cakes.

It means  she uses 1 cup of flour to make 4\div9\frac{1}{3} cakes.

Let us simplify that expression first for future use.

4\div9\frac{1}{3}=4\div\frac{28}{3} =4 X \frac{3}{28} =\frac{3}{7}

Therefore, Clare uses 1 cup of flour to make \frac{3}{7} cakes.

If Noah follows the same recipe,

He uses f cups of flour to make c cakes

Using Ratio Method

→  Name  :  Cup  :  Cake

→  Clare   :    1        :   \frac{3}{7}

→  Noah   :     f       :   c

By using cross multiplication

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c= \frac{3}{7}f

The equation c= \frac{3}{7}f represents the relationship between c and f

8 0
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Answer:

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Read 2 more answers
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rewona [7]

Answer:

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Step-by-step explanation:

9x - 4 + 3x

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=  > 12x - 4

Now taking 4 common from both the terms , we get :-

4(3x - 1)

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