Answer by JKismyhusbandbae: The mean is the average of all the numbers. You add all the numbers and divide by how many numbers you added to get the mean.
N, N+2, and N + 4 are the ages
(N + 4) - (2N) = (N + 2) -24
4 - N = N - 22
2N = 26
N = 13
The brothers are 13, 15, and 17 years old.
HOPE THIS HELPS!!
PLEASE GIVE ME BRAINLIEST!!
Answer:
10 
Step-by-step explanation:
Hi there, hope you are having a nice day!
All we should do is plug in the value of b:
12-2
10 (Answer)
Hope you find it helpful.
Feel free to ask if you have any questions.

Answer:
Ordered pair, (1, 5/2) does not satisfy the given equation 3x-3y=-3
Step-by-step explanation:

Here 


All you have to do is do the distributive property. So, for the first one you would do 5 times x which equals 5x and then you would do 5 times 4 which equals twenty. All you are left with is the addition sign. Your full equation now would be 5x+20