Well, honey, if we're talking about decades, we're looking at groups of 10 years. So, if we're in the year 1285, we've got 1280-1289 to work with. That means we've got one decade in the year 1285. Math doesn't lie, darling.
77 decades and 1 year 77.1 x 10 = 771
20
30 years = 3 decades so 1 year = 1/30 or 0.0333... lots of 3 decades.
40, remainder 5
There are 60 minutes in one hour. Therefore, 1285 minutes is equal to 1285/60 = 21 remainder 25 or 21 hours 25 minutes. Expressed in decimal form, this is equal to 21.416 recurring (that is, 21.416666...) hours.
There are 12 decades in a 120 year period.
1285 plus 150 equals 2435, so add one more year for the year of 0 then it's 2436. There's your answer.
0.1
Ten
12
7 decades which is 70 years
77 decades and 1 year 77.1 x 10 = 771
30 years
20
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
1285 + 622 = 1907