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In 2012, the worlds population was 7 billion and the population was projected to reach 8 billion by the year 2025. What was the annual growth rate projected? Round to four decimals.

Question

In 2012, the worlds population was 7 billion and the population was projected to reach 8 billion by the year 2025. What was the annual growth rate projected? Round to four decimals.

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Step 1

Given:

In 2012, the world’s population was 7 billion and the population was projected to reach 8 billion by the year 2025. What was the annual growth rate projected?  Round to four decimals.

Step 2

Since the population growth equation is given by:

Pis the initial population in billions at time t
tis the number of years since 2012,
r is the rate of growth of population per year.
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Pis the initial population in billions at time t tis the number of years since 2012, r is the rate of growth of population per year.

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Step 3

So In this c...

7 bn
since 2012 to 2025]
t-13
P 8 bn
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7 bn since 2012 to 2025] t-13 P 8 bn

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