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strojnjashka [21]
2 years ago
12

in 1990 there were about 5.4 billion people in the world. if the population has been growing at 1.95% per year, estimate the yea

r when the population will be 8 billion people
Mathematics
1 answer:
kompoz [17]2 years ago
6 0

Answer:

2011

Step-by-step explanation:

Here is the formula.

A=P(1+r)^{n}

A = Final Value

P = Starting Value

R = Rate

N = Time in Years

A = 8,000,000,000

P = 5,400,000,000

R = 0.0195

N = Time in Years

Solve for n.

20.35 Years from 1990; so sometime in 2011 the population would be 8 billion.

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