Answer is b because it eliminates x when these two equations are combined
Step-by-step explanation:
(-x)-12=16
-x=28
x=28
plss mark brainliestttt
1.
D
2.
D
3.
A and D
4.
Didn't Understand
retype in comment and send
Answer:
no
Step-by-step explanation:
3 tons is 3,000 and 7,000 is 7 tons
<h3>
Answer: Choice C</h3>
P = 11/40 + 1/4 - 1/20
=========================================================
Explanation:
The formula we use is
P(A or B) = P(A) + P(B) - P(A and B)
In this case,
- P(A) = 22/80 = 11/40 = probability of picking someone from consumer education
- P(B) = 20/80 = 1/4 = probability of picking someone taking French
- P(A and B) = 4/80 = 1/20 = probability of picking someone taking both classes
So,
P(A or B) = P(A) + P(B) - P(A and B)
P(A or B) = 11/40 + 1/4 - 1/20
which is why choice C is the answer
----------------
Note: P(A and B) = 1/20 which is nonzero, so events A and B are not mutually exclusive.