Answer:
20
Step-by-step explanation:
The questions asks about Combinations of Pizza toppings, so by employing the Combination Formula:
![C(n, k) = \frac{n!}{k!(n-k)!}](https://tex.z-dn.net/?f=C%28n%2C%20k%29%20%3D%20%5Cfrac%7Bn%21%7D%7Bk%21%28n-k%29%21%7D)
![C(6, 3) = \frac{6!}{3! \cdot 3!} = \frac{6 \cdot 5 \cdot 4 \cdot 3 \cdot 2}{3 \cdot 2 \cdot 3 \cdot 2} = 20](https://tex.z-dn.net/?f=C%286%2C%203%29%20%3D%20%5Cfrac%7B6%21%7D%7B3%21%20%5Ccdot%203%21%7D%20%3D%20%5Cfrac%7B6%20%5Ccdot%205%20%5Ccdot%204%20%5Ccdot%203%20%5Ccdot%202%7D%7B3%20%5Ccdot%202%20%5Ccdot%203%20%5Ccdot%202%7D%20%3D%2020)
X + 9 = 2x - 3
<u>-x -x </u>
9 = x - 3
<u> +3 +3</u>
12 = x
Answer:
School Sucks!
Step-by-step explanation:
Half of this stuff you will never use in real life!
780 students prefer chocolate milk.
Step-by-step explanation:
Let,
the total percentage = 100%
Students who prefer plain white milk = 35%
Students who prefer chocolate milk = 100 - 35 = 65%
Number of students = 1200
No. of students who prefer chocolate milk = 65% of total students
No. of students who prefer chocolate milk = ![\frac{65}{100}*1200](https://tex.z-dn.net/?f=%5Cfrac%7B65%7D%7B100%7D%2A1200)
No. of students who prefer chocolate milk = ![\frac{78000}{100}\\](https://tex.z-dn.net/?f=%5Cfrac%7B78000%7D%7B100%7D%5C%5C)
No. of students who prefer chocolate milk = 780
780 students prefer chocolate milk.
Keywords: percentage, subtraction
Learn more about subtraction at:
#LearnwithBrainly
Answer:
1. B) Second figure from the top
2. B) 6 lines of symmetry