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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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The circular mirror hanging on Belle's wall has a diameter of 18 inches. What is the
just olya [345]

Answer:

56.52 inches

Step-by-step explanation:

The circumference of a circle can be found using:

c=\pi d

We know the diameter is 18, and \pi is being rounded to 3.14, so we can substitute them in.

c=3.14*18                   <em>Multiply</em>

c=56.52

So, the circumference is 56.52 inches

7 0
3 years ago
Relations and Functions<br><br> PLS HELP
Vanyuwa [196]

Answer:

A function is a relation that for every input there is only one output.

Step-by-step explanation:

8 0
3 years ago
I NEED HELP QUICKLY!!! What is the sum of the first 140 positive multiples of 3?
garri49 [273]

Answer:

C

Step-by-step explanation:

The multiples of 3 are

3, 6, 9, 12, 15, ...........

The terms form an arithmetic sequence with common difference of 3.

The sum to n terms is

S_{n} = \frac{n}{2} [2a₁ + (n - 1)d ]

where a₁ is the first term and d the common difference

Here a₁ = 3 and d = 3, thus

S_{140} = \frac{140}{2} [ (2 × 3) + (139 × 3) ]

                            = 70(6 + 417) ] = 70 × 423 = 29610 → C

5 0
3 years ago
A function is expressed by the equation y=0.3x−6. For what value of the independent variable will the value of the function be e
Anna11 [10]

Answer:

0; 10; 20

Step-by-step explanation:

x is the independent variable

y is the dependent variable

y is dependent on x

a) For what value of the independent variable will the value of the function be equal to −6

y=0.3x−6

-6 = 0.3x-6

0=0.3x

x = 0

Therefore, if the independent variable is 0, the value of the function will be -6.

b) For what value of the independent variable will the value of the function be equal to −3

y=0.3x−6

-3 = 0.3x-6

0.3x = -3+6

0.3x = 3

x = 3/0.3

x = 10

Therefore, if the independent variable is 10, the value of the function will be -3.

c) For what value of the independent variable will the value of the function be equal to 0.

y=0.3x−6

0=0.3x-6

6 = 0.3x

x = 6/0.3

x = 20

Therefore, if the independent variable is 20, the value of the function will be 0.

7 0
3 years ago
AnYONe know thiss????????/
Anni [7]

Answer:

1st, 3rd, 5th box

Step-by-step explanation:

true:

68.012

68.006

68.049

not true:

680.2

68.3

68.1

8 0
2 years ago
Read 2 more answers
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