Hi Daniellepowers!
To solve this system of equations, add the two equations.
2x+3y=40
+
-2x+2y=20
=
5y=60
y=12
Plug y back into any equation,
2x+3(12)=40
2x+36=40
2x=4
x=2
Solution: (2, 4)
B. <span>x= 2 y=12
Hope this helps :)</span>
Answer:
no
Step-by-step explanation:
because it is nor a solution
Answer: 1
==========================
Explanation:
To average a bunch of numbers, we add them up and divide by how many numbers there are. In this case, we'll divide by 3 since there are 3 numbers.
Add up the values: m+n+(-1) = m+n-1
Divide by 3: (m+n-1)/3
Set this equal to 0 since we're told the average is 0: (m+n-1)/3 = 0
Now let's isolate m+n. It might help to replace "m+n" with another variable, say P to get (P-1)/3 = 0.
Solve for P
(P-1)/3 = 0
P-1 = 3*0 .... multiply both sides by 3
P-1 = 0
P = 1 ... add 1 to both sides
m+n = 1 .... replace P with m+n
So that's why the answer is 1
Answer:
The will be answer is 7216
Step-by-step explanation:
Answer:
I provided the exact form and decimal form!
Step-by-step explanation: hope this helps please mark brainliest!
