In 2013, the United States used 97.5 quads of energy and had a population of 316.5 million people. That same year, Japan had a population of 127 million people and used 21 quads of energy. What was the average energy use (per million people) for Japan and the United States in 2013?

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Biology

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25 April, 16:29

In 2013, the United States used 97.5 quads of energy and had a population of 316.5 million people. That same year, Japan had a population of 127 million people and used 21 quads of energy. What was the average energy use (per million people) for Japan and the United States in 2013?

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Alayna Bentley · Answer 1

United States: 0.308 quads/million people. Japan: 0.165 quads/million people. This is a simple matter of division. Take the total energy used and divide among the number of people using it. So: United States: 97.5 / 316.5 = 0.308056872 quads per million people. Japan: 21 / 127 = 0.165354331 quads per million people. Rounding to 3 significant figures gives 0.308 quads/million for United States and 0.165 quads/million for Japan.