Answer:
![2+2-1-1+6=x : x = 8](https://tex.z-dn.net/?f=2%2B2-1-1%2B6%3Dx%20%3A%20x%20%3D%208)
Step-by-step explanation:
![2+2-1-1+6=x\\](https://tex.z-dn.net/?f=2%2B2-1-1%2B6%3Dx%5C%5C)
Switch sides:
![x=2+2-1-1+6](https://tex.z-dn.net/?f=x%3D2%2B2-1-1%2B6)
Add/Subtract the numbers: ![2+2-1-1+6=8](https://tex.z-dn.net/?f=2%2B2-1-1%2B6%3D8)
![x = 8](https://tex.z-dn.net/?f=x%20%3D%208)
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Answer:
point a
Step-by-step explanation:
Answer:
(-19/2, -5)
Step-by-step explanation:
Given the two equivalent equations
4x – 9y = 7 .... 1
–4x + 6y = 8 ....2
Adding both equations
-9y + 6y = 7+8
-3y = 15
y = -15/3
y = -5
Substitute y = -5 into 1
From 1; 4x - 9y = 7
4x - 9(-5) = 7
4x + 45 = 7
4x = 7 - 45
4x = -38
x = -38/4
x = -19/2
Hence the solution is (-19/2, -5)
Answer:
68
Step-by-step explanation:
Answer:
0.027 to the nearest thousandth.
Step-by-step explanation:
There are 14 marbles in the bag, so:
Prob( a blue on the first draw) = 5/14.
Prob( a blue on the 2nd draw) = 4/13.
Prob( a blue on the 3rd draw) = 3/12 = 1/4.
So the required probability is 5/14 * 4/13 * 1/4
= 20/ 728
= 0.02747.