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3 years ago

About 97,221 adult penguins live on Brash Island. Of those penguins,

Mathematics

1 answer:

lions [1.4K]3 years ago

4 0

Answer:

94, 956

Step-by-step explanation:

Given that of the 97221 adult penguins in the island, 97.67% of them being Adélie penguins then it means to get the actual number of Adélie penguins will be rhe product of percentage and the total population.

Therefore, Adélie penguins will be

$\frac {97.67}{100}\times 97221=94,955.7507$

Since Adélie penguins can't be in decimal, this is rounded off to be 94, 956

Therefore, the number is 94, 956

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Answer:

BC = 6.8

Step-by-step explanation:

The distance from A to B, then from B to C, is the same distance as from A to C.

Thus,

AB + BC = AC

AB = 8x + 8

BC = 4x + 2

AC = 22

AB + BC = AC

(8x + 8) + (4x + 2) = 22

Expanding the parenthesis:

8x + 8 + 4x + 2 = 22

8x + 4x + 8 + 2 = 22

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Subtracting 12 from both sides:

12x = 10

Dividing both sides by 12:

x = 10/12 = 1.2

x = 1.2

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BC = 4x + 2

Let's now put in x = 1.2 into this equation:

BC = 4x + 2

BC = 4 * 1.2 + 2

Since 4 * 1.2 is 4.8:

BC = 4.8 + 2

BC = 6.8

Answer: BC = 6.8

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