Which cookie is better? raspberry cookie or poison mushroom cookie.
2 answers:
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Answer:
7 cm²
Step-by-step explanation:
First, find the area of the big circle with the formula A = r²
A = (3)²
A = 9
Now, we can find the areas of the smaller circles. Since they have the same radius, they are congruent (will have the same area)
A = r²
A = (1)²
A =
Now, we will subtract the areas of the smaller circles from the area of the big circle to find the area of the shaded region:
9 -
-
= 7
So, the area of the shaded region is 7 cm²
Let,
- Number of boys be 3x
- Number of girls be 2x
- Then, Total number of students = 3x + 2x = 5x
It is given that,
➙ Number of girls = 420
Then,
➙ 2x = 420
➙ x = 420/2 = 210
No. of boys = 3x = 630
Then,
➙ Number of students = 5x
➙ Number of students = 5(210)
➙ Number of students = 1050
- ANSWER - 1050
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