The number of people in the world was 2.5 billion in 1950. The population has grown by 1.2% each year since then. Create a equation to model this situation using P to represent population (in billions) and y to represent years.

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21-07-2022
Mathematics

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The number of people in the world was 2.5 billion in 1950. The population has grown by 1.2% each year since then. Create a equation to model this situation using P to represent population (in billions) and y to represent years.

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adioabiola adioabiola · Answer 1 · 2022-07-22T21:46:52+02:00

The equation which correctly models the situation in discuss is; P = 2.5(1.012)^y.

Which equation best models the situation?

If follows from the task content that the situation given is that The number of people in the world was 2.5 billion in 1950.

Afterwards, The population has grown by 1.2% each year since then. Hence it follows that the function is an exponential one whose factor is; (100+1.2)%= 1.012.