Answer:
5
Step-by-step explanation:
number of chocolate chip cookies = 36 × ¼ = 9
number of oatmeal cookies = 36 × ⅓ = 12
36 - 9 - 12 = 15
Alex made 15 peanut butter cookies.
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O.9c
Step-by-step explanation:
The coordinates of point B are (-4 , -2) ⇒ answer H
Step-by-step explanation:
In any circle
- The diameter of the circle passing through its center
- The center of the circle is the mid-point of all diameters
If (x , y) are the coordinates of the mid-point of a line whose end
points are and , then
and
∵ Point C is the center of a circle
∵ AB is the diameter of the circle
∴ C is the mid point of AB
∵ A = (2 , 6) ⇒
∵ B =
∵ C = (-1 , 2) ⇒ (x , y)
- Use the rule of the mid-point above
∵
- Multiply both sides by 2
∴ -2 = 2 +
- Subtract 2 from both sides
∴ = -4
∴ The x-coordinate of point B is -4
∵
- Multiply both sides by 2
∴ 4 = 6 +
- Subtract 6 from both sides
∴ = -2
∴ The y-coordinate of point B is -2
The coordinates of point B are (-4 , -2)
Learn more:
You can learn more about the circle in brainly.com/question/9510228
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Answer:
11) 67%; 12) 25%
Step-by-step explanation:
Problem 11: Find the fraction representing 30 out of a total of 45, and then multiply the result by 100%:
30/45 = 2/3 = 0.67; then we see that 30 is 67% of 45.
Problem 12: Same method:
16/64 = 1/4 = 0.25. Mult. this by 100%: 16 is 25% of 64.