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Reset Help 1. A population with an annual growth rate of 3% doubles roughly every years. 2. A population with an annual growt
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Question 1. 23

Explanation : A population with an annual growth rate of 3% doubles roughly every 23 years.

70/3 = 23

Question 2. 18

Explanation : A population with an annual growth rate of 4% doubles roughly every 18 years.

70/4= 18

Question 3. 10

Explanation : A population with an average growth rate of 7% doubles roughly every 10 years.

79/7= 10

Question 4. 5

Explanation : A population that doubles in size every 14 years has a growth rate of 5 percent.

70/14= 5

Question 5. 2

Explanation : A population that doubles in size every 35 years has a growth rate of 2 percent.

79/35 = 2

By using 70 rule( doubles means it grows exponentialy so we can use 70 rule)

70/% of growth = doubling time

70/ doubling time = % growth

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