Answer:
2nd one
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
( 2 + 4 + 6 + 8) / 4 = 5
Fraction of black pens = 2/ (2 + 5) = 2/7 answer
Answer:
The solution is (4, 0)
Step-by-step explanation:
Using Linear combination method to solve:
![2d + e = 8\\d - e = 4\\](https://tex.z-dn.net/?f=2d%20%2B%20e%20%3D%208%5C%5Cd%20-%20e%20%3D%204%5C%5C)
Since "e" have the same coefficient in both equation with opposite operator; we will add.
![(2d + d) + (e - e) = (8 + 4)\\3d = 12\\](https://tex.z-dn.net/?f=%282d%20%2B%20d%29%20%2B%20%28e%20-%20e%29%20%3D%20%288%20%2B%204%29%5C%5C3d%20%3D%2012%5C%5C)
Divide both side by coefficient of d which is 3
![\frac{3d}{3} = \frac{12}{3} \\d = 4\\](https://tex.z-dn.net/?f=%5Cfrac%7B3d%7D%7B3%7D%20%20%3D%20%5Cfrac%7B12%7D%7B3%7D%20%5C%5Cd%20%3D%204%5C%5C)
Since d = 4; put 'd' into any of the equation to get 'e'
![2d + e = 8\\2(4) + e = 8\\8 + e = 8\\e = 8 - 8\\e = 0\\](https://tex.z-dn.net/?f=2d%20%2B%20e%20%3D%208%5C%5C2%284%29%20%2B%20e%20%3D%208%5C%5C8%20%2B%20e%20%3D%208%5C%5Ce%20%3D%208%20-%208%5C%5Ce%20%3D%200%5C%5C)
Therefore, the solution is (4, 0)
Answer:
27% i think
Step-by-step explanation: