X+y=8
y=3x
You would want to substitute the y for the 3x
x+3x=8
You can now add the x with the 3x to get 4x
4x=8
Now divide the 4 on both side to solve for x
x=2
Now to solve for y just substitute the x for the 2
y=3(2)
Now multiply the 3 and the 2 to solve for y.
y=6
So your corrct answer is B:(2,6)
Answer: 353 square inches
Step-by-step explanation:
Octahedron has 8 faces, icosahedron has 20 faces. Therefore the answer is dodecahedron, it has 12 faces.
36.25 ..................................................................