Divide the first equation by 2 and add the result to the second equation. This will eliminate x.
... (-4x -2y)/2 + (2x +4y) = (-12)/2 +(-12)
... 3y = -18 . . . . . collect terms
... y = -6 . . . . . . . divide by 3
Substitute this into either equation to find x. Let's use the second equation, where the coefficient of x is positive.
... 2x +4(-6) = -12
... 2x = 12 . . . . . . . . add 24
... x = 6 . . . . . . . . . . divide by 2
The solution is (x, y) = (6, -6).
Answer: i believe it’s A
Step-by-step explanation:
Answer: D
Step-by-step explanation: for A the answer would be 80 but she spends more. For b & c i just worked out those so I was left with D. 50% of 800 is 400 and if you add up the cell phone and car payment you get 400
Hope this helps!
Answer ~
<u>A) ∠1 and ∠8 are alternate exterior angles.</u>
<u>B) ∠4 and ∠6 are same side interior angles.</u>
<u>E) ∠3 and ∠6 are alternate interior angles.</u>
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:)
