### Home > MC2 > Chapter 6 > Lesson 6.1.1 > Problem 6-7

6-7.

What percentage of energy remains out of 100% if the other energy sources total to 77%?

23%

If one-third is equal to about 30%, which two energy sources could add up to about this percentage for the total energy in the United States?

If half is equal to 50%, which energy sources could add up to around this percentage for the total energy in the United States?

Oil (40%) and Nuclear (8%) total to 48%.

Renewable (7%), Coal (23%) and Natural Gas (22%)

total to 52%.