The worldwide growth rate of the human population in 1970 was 2.09%, with a doubling time of 34 years. The growth rate in 2010 had decreased to 1.12%, if the rate continues dropping to 1.0%, what will the doubling time be?

a) 70 years

b) 60 years

c) 40 years

Question

Mathematics

Sofia Horn

Today, 03:40

The worldwide growth rate of the human population in 1970 was 2.09%, with a doubling time of 34 years. The growth rate in 2010 had decreased to 1.12%, if the rate continues dropping to 1.0%, what will the doubling time be?

a) 70 years

b) 60 years

c) 40 years

+3

Answers (1)

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Foxy · Answer 1

Answer: a 70yrs

Step-by-step explanation:

Doubling time is the time it takes a country's population to double in size or value.

It is calculated by dividing 70 by the percentage growth rate

Doubling time = 70 / 1.0%

Doubling time = 70 years

The worldwide growth rate of the human population in 1970 was 2.09%, with a doubling time of 34 years. The growth rate in 2010 had decreased to 1.12%, if the rate continues dropping to 1.0%, what will the doubling time be?a) 70 yearsb) 60 yearsc) 40 years

The worldwide growth rate of the human population in 1970 was 2.09%, with a doubling time of 34 years. The growth rate in 2010 had decreased to 1.12%, if the rate continues dropping to 1.0%, what will the doubling time be?

a) 70 years

b) 60 years

c) 40 years