From the year 1820 to 1890, there are seven decades. A decade is a period of ten years, so counting from 1820 to 1830 is one decade, 1830 to 1840 is the second decade, and so on until 1890. In total, that makes seven decades in the given time frame.
There are 3.5 decades in 35 years
1 year = 12 months 1 decade = 10 years = 10*12 = 120 months 10 decades = 10*120 = 1200 months
60 years = 6 decades.
1 decade = 10 years 10 decades = 100 years Today is 2010. 10 decades ago, it was 1910 .
More then 1589
1589
There are 12 decades in a 120 year period.
Ten
0.1
7 decades which is 70 years
30 years
A decade is 10 years. 2012 is one year. There are no decades in a single year. The years 2002 - 2012 represents a decade.
3 decades = 3 x 10 = 30 years
about 1589
well a decade is 10 year so 2 decades will be 20 years
1589 = 7 * 227