A decade is 10 years
therefore
8 decades is 80 years.
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8 decades are equal to 80 years. A decade consists of a period of 10 years, so when you multiply 8 by 10, you get 80. Therefore, 8 decades equal 80 years.
The definition of a decade is 10 years. 8 decades would be 8 x 10 = 80 years.The definition of a century is 100 years.
Four score years, or eight decades.
No.
There are 100 years in each millennial. There are 10 decades in each 100 years. 100 x 8 = 800 X 10 = 8,000.