Answer:
c.300
Step-by-step explanation:
25%-----75 studens
100%-----x students
x=100×75/25= 300
Answer:
The Answer is w - 982 = 922 because it whatever money he took from the 982 lead to 922
Step-by-step explanation:
The number of handshakes that will occur in a group of eighteen people if each person shakes hands once with each other person in the group is 153 handshakes
In order to determine the number of handshakes that will occur among 18 people, that is, the number of ways we can choose 2 persons from 18 people.
∴ The number of handshakes = ![^{18}C_{2}](https://tex.z-dn.net/?f=%5E%7B18%7DC_%7B2%7D)
![^{18}C_{2} = \frac{18!}{(18-2)!2!}](https://tex.z-dn.net/?f=%5E%7B18%7DC_%7B2%7D%20%3D%20%5Cfrac%7B18%21%7D%7B%2818-2%29%212%21%7D)
![^{18}C_{2} = \frac{18!}{16!2!}](https://tex.z-dn.net/?f=%5E%7B18%7DC_%7B2%7D%20%3D%20%5Cfrac%7B18%21%7D%7B16%212%21%7D)
![^{18}C_{2} = \frac{18\times17\times16!}{16!\times2!}](https://tex.z-dn.net/?f=%5E%7B18%7DC_%7B2%7D%20%3D%20%5Cfrac%7B18%5Ctimes17%5Ctimes16%21%7D%7B16%21%5Ctimes2%21%7D)
![^{18}C_{2} = \frac{18\times17}{2\times1}](https://tex.z-dn.net/?f=%5E%7B18%7DC_%7B2%7D%20%3D%20%5Cfrac%7B18%5Ctimes17%7D%7B2%5Ctimes1%7D)
![^{18}C_{2} = \frac{306}{2}](https://tex.z-dn.net/?f=%5E%7B18%7DC_%7B2%7D%20%3D%20%5Cfrac%7B306%7D%7B2%7D)
![^{18}C_{2} = 153](https://tex.z-dn.net/?f=%5E%7B18%7DC_%7B2%7D%20%3D%20153)
∴ The number of handshakes = 153 handshakes
Hence. 153 handshakes will occur in a group of eighteen people if each person shakes hands once with each other person in the group.
Learn more here: brainly.com/question/1991469
Answer: 16 boxes and 6 football cards in each box.
Step-by-step explanation:
Here total football cards rob has = 96
And, He filled 9 boxes with basketball cards.
Also, Rob filled 3 fewer plastic boxes with football cards than basketball cards.
Therefore, football cards in each boxes = 9 - 3 = 6
Thus, the number of boxes he can fill with football cards = 96/6 =16