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Reptile [31]
3 years ago
15

There are 15 clowns in a circus. Each clown has to act either happy or sad. Twelve of the clowns have red noses. Each of the sev

en happy clowns has a red nose. Five of the sad clowns have red noses. How many clowns have to act sad and do not have a red nose?
Mathematics
1 answer:
Neko [114]3 years ago
6 0

Answer:

3

Step-by-step explanation:

  • <em>Each of the seven happy clowns has a red nose.</em>

This means there are (15-7) 8 sad clowns.

  • <em>Five of the sad clowns have red noses. </em>

This means out of 8 sad clowns, 5 have red noses. So the clowns that have to act sad and have red noses are (8-5) 3.

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Answer:

First option

Step-by-step explanation:

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Length + Length + Breadth + Breadth

So,

4x + 8 + 4x + 8 = 8x + 16

8x + 16 + 2x - 3 + 2x - 3 = 12x + 10

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3 years ago
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What is the average rate of change over the interval (-1, 5)​
MArishka [77]

Answer:

See Explanation

Step-by-step explanation:

<em>The question is incomplete as the function is not given. However, the following explanation will guide you.</em>

<em></em>

The average rate of change is calculated using;

A = \frac{f(b) - f(a)}{b - a}

Where

(a,b) = (-1,5)

Take for instance;

The function is:

f(x) = 2x

We have to solve for f(-1) and f(5);

i.e.

f(-1) = 2 * -1  -2

f(5) = 2 * 5 = 10

Substitute -1 for a and 5 for b

A = \frac{f(b) - f(a)}{b - a}

A = \frac{f(5) - f(-1)}{5 - (-1)}

A = \frac{f(5) - f(-1)}{5 +1)}

A = \frac{f(5) - f(-1)}{6}

Substitute values for f(5) and f(-1)

A = \frac{10 - (-2)}{6}

A = \frac{10 +2}{6}

A = \frac{12}{6}

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<em>Apply this steps in your work</em>

5 0
3 years ago
In a country that only wants girls, every family continues to have children until they have a girl. If they have a boy, they hav
Alik [6]

Complete Question

In a country in which people only want Girls, every family continues to have children until they have a Girl. If they have Girl, they stop. If they have boy, they will continuous have child. Assuming that the birthrate of Girl is 52%, what is the proportion of Girl in the country?

Answer:

0.52

Step-by-step explanation:

From the question we are told that

52% is the birthrate of Girls

Therefore

       \frac{52}{100} =0.52

0.52 is the proportion of Girls to boys in that country

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3 years ago
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Elena L [17]

Answer:

Step-by-step explanation:

its not right equation

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dexar [7]

Step-by-step explanation:

one could be that all the angles add up to 180

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∠DBC and ∠ABC must add up to 109 degrees

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