Answer:
![\frac{2}{15}](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B15%7D)
Step-by-step explanation:
GIVEN: A bag contain
red marbles,
green marbles and
blue marble. A marble is chosen at random from the bag and not replaced, then a second marble is chose.
TO FIND: What is the probability both marbles are green.
SOLUTION:
Total marbles in bag ![=10](https://tex.z-dn.net/?f=%3D10)
total number of green marbles ![=4](https://tex.z-dn.net/?f=%3D4)
Probability that first marble will be green ![P(A)=\frac{\text{total green marbles}}{\text{total marbles}}](https://tex.z-dn.net/?f=P%28A%29%3D%5Cfrac%7B%5Ctext%7Btotal%20green%20marbles%7D%7D%7B%5Ctext%7Btotal%20marbles%7D%7D)
![=\frac{4}{10}=\frac{2}{5}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B4%7D%7B10%7D%3D%5Cfrac%7B2%7D%7B5%7D)
Probability that second marble will be green ![P(B)=\frac{\text{total green marble in bag}}{\text{total marble in bag}}](https://tex.z-dn.net/?f=P%28B%29%3D%5Cfrac%7B%5Ctext%7Btotal%20green%20marble%20in%20bag%7D%7D%7B%5Ctext%7Btotal%20marble%20in%20bag%7D%7D)
![\frac{3}{9}=\frac{1}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B9%7D%3D%5Cfrac%7B1%7D%7B3%7D)
As both events are disjoint
probability both marbles are green ![=P(A)\times P(B)](https://tex.z-dn.net/?f=%3DP%28A%29%5Ctimes%20P%28B%29)
![=\frac{2}{5}\times\frac{1}{3}=\frac{2}{15}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B2%7D%7B5%7D%5Ctimes%5Cfrac%7B1%7D%7B3%7D%3D%5Cfrac%7B2%7D%7B15%7D)
Hence the probability both marbles are green is ![\frac{2}{15}](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B15%7D)
the answer is C will u make me brainlest please
So if u see how many times the number goes into 48 u get 25
Answer: room 101 and room 107
Step-by-step explanation:
In room 101, the ratio of boys to girls is 16:12. This is further simplified to its lowest fraction by dividing by 4. It becomes 4:3
In room 104, the ratio of boys to girls is 20:9. This cannot be further simplified to its lowest fraction.
In room 107, the ratio of boys to girls is 12:9. This is further simplified to its lowest fraction by dividing by 3. It becomes 4:3
Therefore, room 101 and room 107 have the same ratio.
Answer:
3.875 pizzas
Step-by-step explanation:
31/8=3.875