Answer:
-16 + 8z
Step-by-step explanation:
4(-4 + 2z)=
Distribute the 4
4*-4 + 4(2z)
-16 + 8z
For this case, the total amount invested is:
investment = 3500 + 1000 = 4500
We must take out the percentage of what X invested.
X investment = (3500/4500) * 100 = 77.78%.
Therefore, X gets 77.78% of the profits:
X profit = 0.7778 * 3000 = 2333.33 $
answer
if the profits are distributed in proportion to the amount invested X receives 2333.33 $
2/3 is about .66 so do .66 divided by 9 and you get .073
Given that average age of employees of a large company is Normal
X - average age of employees
X:N(32,4)
The average age of employees in sales dept is 27 years.
Prob that an employee, chosen at random, will be younger than 27 years.
= P(X<27)
Let us convert x into Z
Z = (x-32)/4 = -5/4 = -1.25
Reqd prob = P(Z<-1.25) =0.5-0.3925
= 0.1075
Hence 10.56% is the correct answer.
