Answer:
(8 , -4)
Step-by-step explanation:
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Answer:
I believe the correct answer is C
Answer:
step 1. x = 2y - 4 on the 1st equation
step 2. 5(2y- 4) - 6y +18 = 0 plug x from 1st equation into the 2nd equation
step 3. 10y - 20 - 6y + 18 = 0
step 4. 4y - 2 = 0
step 5. y = 1/2
step 6. x = -3 plug y into 1st equation
step 7. (-3, 1/2) is the answer.
Answer:
Total cost, c = 7p
Step-by-step explanation:
1pound =$7
Joe buys p pounds,
p pounds = $7 * p
p pounds = 7p
Step-by-step explanation:
Part A: We can write 40 + x + 25 = 180 because these angles are supplementary, meaning they add up to 180 degrees, and when we solve for x, we get x = 115°.
Part B: We can write y = x + 25 because these two angles are vertical angles, meaning they are equal and formed from the same lines. We know that x = 115°, so when we plug that in we get y = 140°.
Part C: z = 40° because these two angles are vertical angles. I hope this helps!
