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.
1285 plus 150 equals 2435, so add one more year for the year of 0 then it's 2436. There's your answer.
There are 12 decades in a 120 year period.
Ten
0.1
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.
1285 + 622 = 1907
3 decades = 3 x 10 = 30 years