Ten decades equals 100 years or one century.
1 century is 100 years or 10 decades.
1 decade equals 10 years. So 2 decades is equal to 20 years.
620 years. 620 years, since one century equals 100 years, and one decade equals 10 years.
well..100 centuries OR 10 decades equals to one century..
A decade equals 10 years, so 10 decades equals 100 years, which is one century.
13 decades because 1 decade equals 10 years
1 decade equals 10 years and therefore 40 years divided by 10 years equals 4 decades.
no a century is 100 years (10 decades)
Ten decades equals 100 years or one century.
4.5 decades equals 4.5 decades!
8 times 10 years make 80 decades because 10 decades tines 8 decades will equal 80. (Hint:10 decades equals 1 year.)
One decade equals ten years.
1 century is 100 years or 10 decades.
1 decade equals 10 years. So 2 decades is equal to 20 years.
25 a decade equals 10 years... so 10 x 2.5=25
200 decades. There are 10 years per decade, so two millenia (plural of millenium), which would be 2000 years, when divided by 10 equals 200.