there are 10 decades in one century so therefore 10 times 4 is 40
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∙ 7y ago400/10 = 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
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
i hate this question
30 decades
Fifty. There are 10 decades in every century, so 10 * 5 = 50.
53 decades Yup. A decade is ten years. A century is 100 years. 5 centuries are 500 years so 500 divided by 10 is 50. Add the three other decades and you get 53.
That's 560 years...