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What is the approximate doubling time in years for population with a 4 percent growth rate?
Wiki User
∙ 14y ago
If the growth rate is 4 % per year, as may be intended to be implied, then the population after x years will be (1 + 0.04), 0.04 being the decimal equivalent of 4 %, raised to the xth power, or 1.04x = 2. This kind of equation can be solved with the aid of logarithms, since the logarithm of 1.04x = x(log 1.04), or x = (log 2)/(log 1.04) = about 18 years.
Wiki User
∙ 14y ago
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Exponential Growth
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The rate of growth and, unless the relationship is exponential, the frequency of each growth cycle.
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What are the ways that a growth rate may be stated or expressed?
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What are the three ways that a growth rate may be started or expressed?
It may be stated as a doubling time, a birthrate per female, or a percentage of growth per year.
Which metropolitan area experienced the fastest population growth in the 1990s?
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The Philippine population growth in 2008?
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The overall growth of the U.S. population from 1990 to 2000 was 13 percent.What was the growth of the Hispanic population from 1990 to 2000?
57.9 percent
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The Philippine population grew at an annual average growth rate of 2.04 percent from 2000 to 2007.
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What is the population growth rate in India?
2.1 percent per year
Which one of these countries has population growth below 1 percent?
Thailand
Took this entire time period for the population to double?
The time it takes for a population to double is known as the doubling time. It is calculated using the rule of 70, which states that you divide 70 by the growth rate to find the doubling time. For example, if a population is growing at a rate of 2% per year, it would take approximately 35 years for the population to double.
What is the formula for doubling the bacteria growth rate every 2 minutes in 1 hours?
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