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What is half of 2 billion?
Half of 2 billion is 1 billion. To find half of a number, you divide it by 2. In this case, dividing 2 billion by 2 gives you 1 billion. This is because half of any number is equal to dividing that number by 2.
How do you write twenty eight and a half billion?
As a number it is: 28,500,000,000
What is half of 6.5 billion?
Half of 6.5 billion is 3,250,000,000 (3.25 billion).
Assume that the age of the Earth is 4.6 billion years. How many half-lives of Rubidium-87 does the age of the Earth represent?
The half-life of Rubidium-87 is about 48.8 billion years. To determine the number of half-lives in 4.6 billion years, you divide the age of the Earth by the half-life of Rubidium-87: 4.6 billion years / 48.8 billion years ≈ 0.0943 half-lives. Thus, the age of the Earth represents approximately 0.09 half-lives of Rubidium-87.
Half of a billion?
Half of an American billion is 500,000,000 (500 million). Half of a British billion is 500,000,000,000 (500 thousand million).
Write number five and half billion with digits instead of words?
5,500,000,000
What does the word half-billion mean?
funny enough, half a billion
What is half of one billion?
Half of one billion is 500 million. To find half of a number, you simply divide it by 2. In this case, dividing one billion by 2 gives you 500 million. This is because one billion is equal to 1,000 million, so half of that would be 500 million.
How do you write 1 and one half billion?
1 and one half billion can be written as 1.5 billion.
If a radioactive isotope had a half - life of 1 billion years how much of it would be left after 2 billion years?
1/4: Half would be gone after a billion years and half of that would be gone in another billion years. 1/4: Half would be gone after a billion years and half of that would be gone in another billion years. 1/4: Half would be gone after a billion years and half of that would be gone in another billion years.
A potassium 40 sample starts with 50 atoms and 1.25 billion years later there are 25 atoms What is the half life of potassium 40?
1.25 billion years: 25/50 or half the original atoms have disintegrated in 1.25 billion years, and that is the definition of half life.
What is half billion in figure?
500,000,000 five hundred million 1,000,000,000 is one billion
