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steposvetlana [31]
3 years ago
10

A bag contains 5 purple buttons, 12 blue buttons and 3 green buttons. A single button is randomly chosen.

Mathematics
1 answer:
bekas [8.4K]3 years ago
5 0

Answer:

60%

Step-by-step explanation:

5+3+12=20

20 = 1/5 of 100

12 x 5 = 60

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The circumference of a circle is 23π m. What is the area, in square meters? Express your answer in terms of \piπ
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Answer:

Area of the circle =   \frac{529}{4}  π  m²    or      132.25 π  m²

Step-by-step explanation:

To find the area, we will follow the steps below.

First write down the formular for the circumference of a circle, then use the formula to find the radius of the circle after which you can now find the area of the circle.

That is;

C = 2πr

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From the question given, circumference C = 23π

23π = 2π r

Divide both-side of the equation by 2π

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Formula for calculating the area of a circle is given by;

A = πr²

where A= area of the circle   and   r is the radius of the circle

A = π ( \frac{23}{2} )²

A = \frac{529}{4}  π  m²    or      132.25 π  m²

Area of the circle =   \frac{529}{4}  π  m²    or      132.25 π  m²

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