5x =61-6
5x= 55
X = 55/5
X = 11
<span>1x+1y=-2
2x-3y=-9
x = -2 - y
substitute x = -2 - y into </span>2x-3y=-9
2x-3y=-9
2(-2 - y)-3y=-9
-4 - 2y - 3y = -9
-4 - 5y = - 9
5y =5
y = 1
x = -2 - y
x = -2 - 1
x = -3
answer (-3,1)
Answer:
15/7
Step-by-step explanation:
8/7 + 7/7 = 8+7 = 15
Therefore, the sum of 8/7 + 7/7 is equals to 15/7
Answer:
0.5969 = 59.69% probability that it was a flight of airline A
Step-by-step explanation:
Conditional Probability
We use the conditional probability formula to solve this question. It is
In which
P(B|A) is the probability of event B happening, given that A happened.
is the probability of both A and B happening.
P(A) is the probability of A happening.
In this question:
Event A: Left on time.
Event B: From airline A.
Probability of a flight leaving on time:
81% of 48%(airline A).
61% of 26%(airline B)
40% of 26%(airline C). So
Probability of leaving on time and being from airline A:
81% of 48%. So
What is the probability that it was a flight of airline A?
0.5969 = 59.69% probability that it was a flight of airline A