The answer is B :)
The mean is the average of the set of data.
There are 4+6=10 people in the team.
First calculate in how many ways you can choose 3 people from a group of 10 people, using combination:
You can choose 3 people in 120 ways.
You can select 1 girl from a group of 4 girls in 4 ways.
Calculate in how many ways you can choose 2 boys from a group of 6 boys:
You can choose 2 boys in 15 ways.
Using the rule of product, you can calculate that you can choose 1 girl and 2 boys in 4×15=60 ways.
The probability of choosing 1 girl and 2 boys is the number of ways you can choose 1 girl and 2 boys divided by the number of ways you can choose 3 people from the group.
The probability is 1/2, or 50%.
2x - 23.5 = 192.9
2x = 216.4
x = 108.2
Person A made 108.2 million, and Person B made 84.7 million
Answer:
Option (2).x = -8
Step-by-step explanation:
Given system of equations to create the opposite terms of y-variable is,
→ ------(1)
→ 18x + 3y = -288 ---------(2)
By adding both the equations (1) and (2)
(x - 3y) + (18x + 3y) = 136 - 288
(x + 18x) + (-3y + 3y) = -152
19x = -152
x = -
x = -8
Therefore, value of x = -8.
Option (2) will be the answer.