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.
Explain how the nebular hypothesis accounts for the difference in the chemical make-up of Terrestrial and Jovian planets. The gas and dust within it first concentrated near the center in the protosun. As this heated up, radiation pressure pushed the lighter gases and dust away, leaving the heavier elements near the protosun. In time these swept together to first form planetisimals, then the terrestrial planets.