Answer:
Step-by-step explanation:
128 divided 2 times X or 128/2 * X
then
128/2 * 5
Answer:
x = 5.5
Step-by-step explanation:
First, you need to distribute the -2:
-2(2+x) = -2x-4
Next you simplify:
x-2x = -x
Then you get all the x values on one side of the equation and everything else on the other side:
7-3x = -x-4 --> 11 = 2x
Finally, you isolate the x by dividing:
2x = 11 --> x = 5.5
Answer:
a infinatley many
Step-by-step explanation:
Answer:
B. 11
Step-by-step explanation:
If you draw 10 triangles and count the number of vertices on the bottom, you get 10 vertices, because half of the vertices are touching which reduces it to 1. There is also the top vertex connecting all of the triangles together.
