there are 10 decades in one century so therefore 10 times 4 is 40
70 decades
70 decades are in 7 centuries. It's just 10 decades per century times 7 centuries (700 years).
A decade is 10 years and so 40 times 10 = 400 years which is 4 centuries
20 decades are in 2 centurarys
340 years
seven centuries 78 decades
About 793 years
There are 10 decades in a century. Therefore, 3.5 centuries is equal to 3.5 x 10 = 35 decades.
Ten decades is one century.
A decade is 10 years. Get your calculator out and see if it isn't 80 decades.
260 years equal two centuries and six decades.
700
There are 25
i hate this question
I think it's 2
30 decades