70 decades
70 decades are in 7 centuries. It's just 10 decades per century times 7 centuries (700 years).
A decade is ten years, so 7 decades in 70 years.
Nope - four score and seven years is 87. Which is eight decades.
There are 10 years in one decade. Which means that 70 years is equal to 7 decades.
70 decades
70 decades are in 7 centuries. It's just 10 decades per century times 7 centuries (700 years).
About 793 years
7 decades which is 70 years
70 years century=100 years decade= 10 years
7 decades since a decade is 10 years long
A decade is ten years, so 7 decades in 70 years.
it is 2000000
Nope - four score and seven years is 87. Which is eight decades.
A decade is 10 years so 6 decades is 60 years
20 decades = 2 centuries or 20*10 = 200 years
300