If s represents the number of students, then the number of pizzas is
s/4 + 2 = 9
s/4 = 7 . . . . . . subtract 2
s = 28 . . . . . . multiply by 4
There are 28 students.
Answer:
A
Step-by-step explanation:
The points are similar
I'll do the first one:
Both novels.
Student 1 picks a novel. There are 3 novels out of 6 books total.
Now there are 5 books left.
Student 2 picks a novel. There are 2 novels out of 5 books since the other student took a novel.
To find the probability you would multiply the probability student 1 gets a novel and the probability student 2 gets a novel.
![\frac{3 Novels}{6 Books} x \frac{2 Novels}{5 Books} = \frac{6}{30} = \frac{1}{5}](https://tex.z-dn.net/?f=%20%5Cfrac%7B3%20Novels%7D%7B6%20Books%7D%20x%20%20%5Cfrac%7B2%20Novels%7D%7B5%20Books%7D%20%3D%20%20%20%5Cfrac%7B6%7D%7B30%7D%20%3D%20%20%5Cfrac%7B1%7D%7B5%7D%20)
So the probability is 1/5. Or 20%
Answer:
2
Step-by-step explanation:
2+2(2)=6
2(2)=4
4=4