Https://www.tiger-algebra.com/drill/(3x~2−5xy_2y~2)−(7x~2−3xy−3y~2)/
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:
Step-by-step explanation:
Paul ran a 26 1/5 mile marathon in 2 3/4 hours
<u>Paul's average speed was:</u>
- distance/time =
- 26 1/5 : 2 3/4 =
- 131/5 : 11/4 =
- 131/5 * 4/11 =
- 524/55 =
- 9 29/55 mph
<u>Inequality for the speed of faster runners:</u>