A decade equals 10 years, so to convert 4 billion years to decades, simply divide by 10.
4,000,000,000 years / (10 years/ decade) = 400,000,000 decades.
So 4 billion years is 400 million decades
4 decades, 4 years
Earth is about 4.5 to 4.6 billion years old. The universe is about 13.7 billion years old.
6 decades=60 years so no its not
Oh, what a lovely question! Let's see here. 3 centuries is 300 years, 7 decades is 70 years, and 4 years is, well, 4 years. If we add them all together, we get a total of 374 years. Isn't that just a happy little sum?
If the year is 1969, four decades later would be 2009. This is because a decade consists of 10 years, so four decades would be 40 years. Adding 40 years to 1969 gives us the year 2009.
16 decades and 4 years.
4 decades, 4 years
About 4 and a half billion years.
Over the last 4 billion years.
It is 4 billion years
As we know that a decade is 10 years So, 1 decade = 10 years 4 decades = 4 x 1= = 40 years Thus, 4 decades is equal to 40 years.
No, the first cells are believed to have appeared around 3.5 to 4 billion years ago on Earth. This was long after the formation of the universe, which is estimated to be about 13.8 billion years old.
in one decade there are 10 years, so if you times 10 by 4 you will get 40 so there are 40 years in 4 decades.
A decade is ten years. So, four decades is forty years.
100 years
Over the last 4 billion years.
Around 4-5 billion years.