Answer:
x = 8 , y = 3
Step-by-step explanation:
3x + 2y = 30
3x - y = 21 -> y = 3x - 21
3x + 2 (3x - 21) = 30
3x + 6x - 42 = 30
3x + 6x = 30 + 42
9x = 72
x = 72/9 = 8
y = 3*8 - 21 = 24 - 21 = 3
∴ x = 8 & y = 3
Answer:
The answer is the letter B.
The first column represents the x-values, and the second row represents the y-values.
For that reason, if we have:
2x - 7y = -1
x + 3y = -5
Then, the matrix will be given by:
[ 2 -7
1 3]
Then, the third colum will be the equality:
[ -1
-5]
So the correct option is the letter B.
Answer:
Trying to get 24
Henry being 1 more than twice Frank age
Frank 3
Henry 7
Taila 14
3 *2=6+1=7*2=14
Step-by-step explanation:
Answer:
x-intercept: x = 8/3
y-intercept: y = 8
Step-by-step explanation:
x-intercept
![y = 8 - 3x](https://tex.z-dn.net/?f=y%20%3D%208%20-%203x)
![0 = 8 - 3x](https://tex.z-dn.net/?f=0%20%3D%208%20-%203x)
![3x = 8](https://tex.z-dn.net/?f=3x%20%3D%208)
![x = \frac{8}{3}](https://tex.z-dn.net/?f=x%20%3D%20%20%5Cfrac%7B8%7D%7B3%7D%20)
••••
y-intercept
![y = 8 - 3x](https://tex.z-dn.net/?f=y%20%3D%208%20-%203x)
![y = 8 - 3 \times 0](https://tex.z-dn.net/?f=y%20%3D%208%20-%203%20%5Ctimes%200)
![y = 8](https://tex.z-dn.net/?f=y%20%3D%208)
Answer:
Hello!!
What is the value of m?
![0.61m-1.51m=9](https://tex.z-dn.net/?f=0.61m-1.51m%3D9)
![m=-10](https://tex.z-dn.net/?f=m%3D-10)
Step-by-step explanation:
Isolate the variable by dividing each side by factors that do not contain the variable
Hope this helps!!