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elena55 [62]
3 years ago
5

Can u guys help me with number 1 (a) I’m really struggling and it will mean a lot!

Mathematics
1 answer:
Degger [83]3 years ago
4 0

since alie ate 15 gram and there are 12 grams in every 8.

what i did, I made a table that looks like

once you make a table that looks like this, in this kind of situations.

multiply across ( yellow ones)

and then divide by the green one

and then you'll get the answer



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lina2011 [118]

Answer:

see explanation

Step-by-step explanation:

The area of the shaded portion is the area of the outer circle subtract the area of the inner circle

area of larger circle = πr² ← r is the radius = 11

area = π × 11² = 121π

area of smaller circle = πr² ← r = 9

area = π × 9² = 81π

-----------------------------------------

shaded area = 121π - 81π = 40π m² ≈ 126 m²

   

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Answer: x = 3.4

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