In the example, multiplying $6 by 25 percent gives a weighted-average CMU of $1.50 for Product A. Step 4. Add the weighted-average CMUs of each product together to give the total weighted-average contribution margin or weighted-average ratio for the company's current product mix.
Select the photographs to display the original source in another window. Links to external sites will be displayed in another window. Terrestrial planets have hard surfaces that can be re-shaped by several different processes: impact cratering, volcanism, erosion, and tectonics.
The main force that shapes our planet s surface over long amounts of time is the movement of Earth's outer layer by the process of plate tectonics.This picture shows how the rigid outer layer of the Earth, called the lithosphere, is made of plates which fit together like a jigsaw puzzle.hen two sections of the Earth's crust collide, one slab of crust can be forced back down into the deeper regions of the Earth, as shown in this diagram. This process is called subduction.