Answer:
C
Step-by-step explanation:
Answer:
(3x-2y=-2)×3
(4x-3y=-4)×2
then minus
x=2
then for y take one equation
3x-2y=-2
6-2y=-2
y=4
57-39=18 so 39+18=57 so the answer is 18
A. 2x+x=36
x=12
B. 2(12)+12=36
24+12=36
C. Brainliest if satisfied :D
Answer:
it will take a programmer about 16.67 times to work before they are fired
Step-by-step explanation:
From the information given;
The transistion matrix for this study can be computed as:
P M X
P 0.7 0.2 0.1
M 0 0.95 0.05
X 0 0 1
where;
The probability that the programmer remains a programmer = 
The probability that the programmer turns out to be a manager = 
The probability that the programmer is being fired = 
Thus, the required number of years prior to the moment being fired for an employee y(P), for programmer and y(M) for manager is represented by ;



y(M) = 
y(M) =20
y(P)=1+0.7y(P)+0.2y(M)
y(P) - 0.7y(P) = 1 + 0.2y(M)
0.3y(P) = 1 + 0.2(20)=1+4
0.3y(P) = 1 + 4
0.3y(P) = 5


Therefore, it will take a programmer about 16.67 times to work before they are fired