SOLUTION: Please help me with this word problem. I've been trying for hours. The U.S. population in 1990 was approximately 250 million, and the average growth rae for the past 30 years gi

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Question 54014This question is from textbook Beginning Algebra
: Please help me with this word problem. I've been trying for hours.
The U.S. population in 1990 was approximately 250 million, and the average growth rae for the past 30 years give a doubling time of 66 years. The formula for the U.S. then becomes P(in millions)=250 * 2^(y=1990)/66
What will the population of the U.S. be in 2025 if this growth rate continues?
This question is from textbook Beginning Algebra

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
P(in millions)=250 * 2^(y=1990)/66
What will the population of the U.S. be in 2025 if this growth rate continues?
--------------
P(in millions)= 250*2^[(2025-1990)/66]
P(in millions)= 250*2[35/66]
P(in millions)= 250*1.44423...
P(in millions)= 361.06
Cheers,
Stan H.

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