1.25 is the slope 5/4 rise over run
5 students like cheesecake because if there is 20 students in all and 15 like chocolate and the rest like cheesecake you do 20-15=5
If 5 students like cheesecake out of 20 it would be 5/20 20*5=100 just multiply by 5 5*5=25%
25% of students like cheesecake
To figure out the cost per cookie, divide $2.49 by 3. The cost per 1 cookie (column 1) would be .83 cents.
To figure out the cost of 20 cookies, multiply 20 x .83 cents. The answer is 20 cookies would cost $16.60
To figure out how many cookies would cost $145,25, divide $145.25 by .83 cents. The answer is 175 cookies would cost $145.25
The area of the sector is 86.81π mm²
<u>Explanation:</u>
Given:
Radius of the sector, 25mm
Angle, α = 50°
Area of the sector, A = ?
We know:
Area of the sector = ![\frac{\alpha }{360} X \pi r^2](https://tex.z-dn.net/?f=%5Cfrac%7B%5Calpha%20%7D%7B360%7D%20X%20%5Cpi%20r%5E2)
On substituting the value, we get:
![A = \frac{50}{360} X \pi X (25)^2\\\\A = 86.81 \pi mm^2](https://tex.z-dn.net/?f=A%20%3D%20%5Cfrac%7B50%7D%7B360%7D%20X%20%5Cpi%20X%20%2825%29%5E2%5C%5C%5C%5CA%20%3D%2086.81%20%5Cpi%20mm%5E2)
Therefore, the area of the sector is 86.81π mm²