The answer is -34 cause if x is -7 and y is 3 then you know you switch em out and do the thing and get the answer.
Answer:
x = 2 and y = -2
Step-by-step explanation:
We must first eliminate the y-variable:
2x + 3y = -2
3x - 6y = 18
4x + 6y = -4
3x - 6y = 18
_________
7x = 14
x = 2
Since we know x=2, we plug that back into one of the original equations to find y:
2x + 3y = -2
2(2) + 3y = -2
4 + 3y = -2
3y = -6
y = -2
Therefore, x = 2 and y = -2
Step-by-step explanation:
whole numbers, place values etc.
Answer:
82.5
Step-by-step explanation:
the mean and standard deviation of the data is 82.5
