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Scientists believe that about 13.7 billion years have passed since the beginning of time. 13.7 billion years is 1.37 billion decades.
Wiki User
∙ 6y ago
Wiki User
∙ 6y agoApprox 400 million on earth.
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How many decades is 969 years?
96 decades and 9 years.
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There are 19 decades in 190 years.
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16.7 decades
