Dang... tuff I never knew there was a brainly eats.
Answer:
950
Step-by-step explanation:
20 x 50 = 1000
1000 - 50 = 950
Yo, if you gave me brainliest that would be pretty coolio, as it turns out that only a small percentage of people who's questions I answer actually give it to me. So it would be a huge help if you did so. It's free, and you can always change your mind later. Also please consider leaving a thanks on this answer to boost it in the brainly algorithm. Okay if you made it this far into the answer I want you to comment "door" down below. Please and thank you.
Question:
2x + y = 3, x - 2y = –1.
If equation one is multiplied by 2 and then the equations are added, the result is _____.
(A) 3x = 2
(B) 3x = 5
(C) 5x = 5
Answer:
Option C:
5x = 5
Solution:
Given equations are
2x + y = 3 – – – – (1)
x – 2y = –1 – – – – (2)
Let us first multiply equation (1) by 2, we get
(1) × 2 ⇒ 4x + 2y = 6 – – – – (3)
Now, add equation (3) to equation (2).
⇒ x – 2y + 4x + 2y = –1 + 6
Combine like terms together.
⇒ x + 4x – 2y + 2y = –1 + 6
⇒ 5x = 5
So, if equation one is multiplied by 2 and then the equations are added, the result is 5x = 5.
Answer:
Yes
Step-by-step explanation:
There are 7 pairs per poster and u have 8 posters so, I think u should do 7 times 8 and u get 56 so its B.56
