SOLUTION: 5. Modeling Population: The population of the world has grown rapidly during the past century. As a result, heavy demands have been made on the world's resources. Exponential funct

Algebra.Com
Question 826467: 5. Modeling Population: The population of the world has grown rapidly during the past century. As a result, heavy demands have been made on the world's resources. Exponential functions and equations are often used to model this rapid growth, and logarithms are used to model slower growth. The formula models the population of a US state, A, in millions, t years after 2000.
a. What was the population in 2000?
b. When will the population of the state reach 23.3 million?
The population in the year 2000 of state "A," according to the equation, was:
16.6e^0.547(0), or 16.6e^0, or 16.6 million.
Answer Part a:
16.6 million
could you please help solve for part b please

Answer by josgarithmetic(39621)   (Show Source): You can put this solution on YOUR website!
, for t years after year 2000, A in millions is the population at time t, 16.6 is population in millions at time t=0.

Part b: When will A=23.3 ?
'
Solve the equation for t, and then just substitute A=23.3.
'
Take natural logarithm of both sides;



DO you know what to do from here?

RELATED QUESTIONS

Modeling Population: The population of the world has grown rapidly during the past... (answered by josgarithmetic)
The population of a local high school has grown over the past three years from 7,054 to... (answered by nerdybill)
In 1980, the population of a city was 5.5 million. By 1992 the population had grown to... (answered by rothauserc)
in 1980, the population pf a city was 6.5 million. By 1992 the population has grown to... (answered by Boreal)
in 2000, the population of a city was 74,000 the population has grown to 123,000 by 2010, (answered by jorel1380)
If the world population is now(in 2009( 6.72 billion people and is growing at 1.14%, how... (answered by rapaljer)
If the world population is now(in 2009( 6.72 billion people and is growing at 1.14%, how... (answered by rapaljer)
A bacteria culture has an initial population of 600. After 4 hours the population has... (answered by stanbon)
The popular of Garrison was 24,000 in 1995. Since then the town has grown by 200 people... (answered by ikleyn)