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Question

Question
Gross domestic product (GDP) is a measure of the economic output of a country. The GDP of the United States was about 1.2 x 1013 dollars in 2005. This is about 3 times the GDP in 1985. What was the U.S. GDP in 1985?
(1 point)
Responses

4 x 102
4 x 10 2

4 x 103
4 x 10 3

4 x 1012
4 x 10 12

4 x 1013

Answer 1

To find the GDP in 1985, we need to divide the GDP in 2005 by the growth factor of 3.

GDP in 1985 = GDP in 2005 / Growth factor

GDP in 1985 = 1.2 x 10^13 / 3

GDP in 1985 = (1.2 / 3) x 10^13

GDP in 1985 = 0.4 x 10^13

Therefore, the U.S. GDP in 1985 was 4 x 10^12 dollars.

The correct answer is: 4 x 10^12