Answer:
D
Step-by-step explanation:
Answer:
The sum of x and y is 8.
Step-by-step explanation:
x+2y=10
x-2y=2
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2x = 12, so x = 6. Substituting 6 for x in the 2nd equation, we get:
6 - 2y = 2, or
4 = 2y, or y = 2. The solution is therefore (6, 2).
The sum of x and y is 6 + 2 = 8 (answer)

There is one solution to this system of equations. The answer is B.
-3/2
perpendicular slopes are those that are opposite sign and reciprocal of the original given slope