2 [-3x+2y=8]
6x-2y=-20
-6x + 4y = 16
6x - 2y = -20
2y = -4
y = -2
use the first eq (u can use any) then substitute the value of y
-3x + 2(-2) = 8
-3x -4 = 8
-3x = 12
x = -4
X = -17/2 is the answer if I’m correct
8 states start with the letter N. Because you’re looking for the amount of states not starting with the letter N, we’ll subtract 8 from 50. Then you’ll put that over the total amount of states. So you should end up with 42/50 which will simplify to 21/25. Hope this helped!
Answer:
probability that their average salary is more than $77,500 is 0.1587
Step-by-step explanation:
standard error
= 10,000/sqrt(16)
=10,000/4
= 2500
(77,500 - 75000)/2500
2,500/2500
= 1
p (z > 1) = .1587
So, the probability that their average salary is more than $77,500 is 0.1587
