Answer:
Thus, n = 4 is the solution.
Step-by-step explanation:
1. perform the indicated multiplication, obtaining 3n + 24 = 36
2. Subtract 24 from both sides: 3n = 12
3. Solve this result for n: n = 12/3. Thus, n = 4 is the solution.
4.7
It just is.....
It is what it is.....
if events X and Y are independent, then for intersection we multiply the probability
P(Y∩X) = P(Y) * P(X)
We know that
Now we replace P(Y) * P(X) for P(Y∩X)
Cancel out P(X)
So 
Like that
Now we replace P(X) * P(Y) for P(X∩Y)
Cancel out P(Y)
So 
P(Y | X) = P(Y) and P(X | Y) = P(X) are true
X represents the number that would be added to the silver cars.
x/40= 4
X=40x4
x=160
Subtract the given 20 from 160 because 160 is the total number
160-20=140
Therefore 140 would be added to 20 silver cars to get the ratio1:4
<h3>
Answer: (ab - c)(ab + c)</h3>
===================================================
Work Shown:
a^2b^2 - c^2
(ab)^2 - c^2
(ab - c)(ab + c)
In the last step, I used the difference of squares factoring rule.
