A and X are two independent events , Option A is the correct answer.
<h3>When is Probability ?</h3>
Probability is the likelihood of an event to happen
A two way table is given
The two events will be independent when
If A is the first event and B is the second event , then
P(A) = P(A|B)
Here the P(A) = 30/100 = 0.3
P(B) = 20/100 = 0.2
P(A|X) = 15/50 = 0.3
P(A) = P(A|X)
Therefore A and X are two independent events , Option A is the correct answer.
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Answer:
13.5 minutes
Step-by-step explanation:
128 = 3 minutes
128/3 = 1 minute worth of words
42.6 = 1 minute
576/42.6 = 13.5
It would moat likly be y=-2 due to it having to be perpendicular to the y axis and pass through the 5,-2 point
This is a mixture problem.
Let the 9 karat gold to be mixed be x. The 18 karat would weight (200 - x). Since the total = 200g.
mass1 * karat1 + mass2*karat = total mass * total carat
Let mass1 be x g. mass 2 would be = (200 -x)
karat 1 = 9 karat 2 = 18
Total mass = 200g.
Total karat = 14.
9*x + 18*(200 -x) = 14*200
9x + 18*200 - 18*x = 14*200
18*200 + 9x - 18x = 14*200
3600 - 9x = 2800
3600 - 2800 = 9x
800 = 9x
9x = 800
x = 800/9
x ≈ 88.89
Therefore 88.89 grams of 9 karat gold must be mixed.
Answer:
P=x+18
Step-by-step explanation:
a=8
b=x
c=10
P=8+x+10
