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2 answers:
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Answer:
3 layers
Step-by-step explanation:
Given
--- side length of the cube
Each layer = 2 * 2 cube
Required
Determine the number of layers
First, we calculate the volume of each layer:
The length of the layer is:
Next, we calculate the volume of each layer:
The number of layer is calculated by dividing the volume of the tower by the volume of each layer
Answer: x=
Step-by-step explanation:
1. Remove parentheses.
3(x-1)-2x-1=8(x-1)3(x−1)−2x−1=8(x−1)
2.Expand.
3x-3-2x-1=8x-83x−3−2x−1=8x−8
3. Simplify 3x-3-2x-13x−3−2x−1 to x-4x−4.
x-4=8x-8x−4=8x−8
4. Subtract xx from both sides.
-4=8x-8-x−4=8x−8−x
5. Simplify 8x-8-x8x−8−x to 7x-87x−8.
-4=7x-8−4=7x−8
6. Add 88 to both sides.
-4+8=7x−4+8=7x
7. Simplify -4+8−4+8 to 44.
4=7x4=7x
8. Divide both sides by 77.
=x
9.Switch sides.
x=