X- Alyssa's goal
![\frac{36}{x}](https://tex.z-dn.net/?f=%20%5Cfrac%7B36%7D%7Bx%7D%20)
*100%=45%
![\frac{36}{x}](https://tex.z-dn.net/?f=%20%5Cfrac%7B36%7D%7Bx%7D%20)
=
![\frac{45}{100}](https://tex.z-dn.net/?f=%20%5Cfrac%7B45%7D%7B100%7D%20)
36*100=45x
3600=45x /:45
x=80
Her goal was 80 bags of peanuts
?.?.......?????????????........????????????
Answer:
What do you need help with?
Step-by-step explanation:
Answer:
0.4
Step-by-step explanation:
Given
60 % wear neither ring nor a necklace
20 % wear a ring
30 % wear necklace
This question can be Solved by using Venn diagram
If one person is choosen randomly among the given student the probability that this student is wearing a ring or necklace is
![P\left ( wear \ ring\ or \ necklace )+P\left ( neither\ ring\ or\ necklace)=1](https://tex.z-dn.net/?f=P%5Cleft%20%28%20wear%20%5C%20ring%5C%20or%20%5C%20necklace%20%29%2BP%5Cleft%20%28%20neither%5C%20ring%5C%20or%5C%20necklace%29%3D1)
![P\left ( wear \ ring\ or\ necklace )=1-0.6=0.4](https://tex.z-dn.net/?f=P%5Cleft%20%28%20wear%20%5C%20ring%5C%20or%5C%20necklace%20%29%3D1-0.6%3D0.4)
The sum of probabilty is equal to 1 because it completes the set
Therefore the required probabilty is 0.4