Answer:
The probability of picking at least three boys is
.
Step-by-step explanation:
We have to choose 5 people to form a student government.
We have to pick 5 people out of 7 girls and 5 boys.
What is the probability that at least 3 boys are a part of the student government?
The probability of picking 5 people out of 12 girls and boys = 
The probability of picking at least 3 boys excludes the probability of picking 3 girls. The probability of picking 3 girls = 
The probability of picking at least 3 boys = 1 -
= 
The probability of picking 5 people and the probability of picking at least 3 boys =
×
= 
Answer:
70
Step-by-step explanation:
Just do it backwards.
94 - 12 = 82.
82 + 6 = 88.
88 - 18 = 70.
Answer:
16
Step-by-step explanation:
first term/(1-ratio)
8/(1-1/2)
8/1/2 = 16
Answer:
1. 19 units
2. 22 units
3. 9 units
4. 8 units
5. 11 units
Step-by-step explanation:
Answer: Fact families are 3 numbers that make up a set of related math facts
Step-by-step explanation:
.An example of a fact family for multiplication and division is 2, 3, and 6: 2 X 3 = 6, 3 X 2 = 6, 6 2 = 3, and 6 3 = 2.