SOLUTION: Find the annual rate of growth on an account that was worth $1000 in 1996 and was worth $1400 in 1999. I have tried like this: 1996-1999 is 3 years, and it had raised $400 400/

Algebra ->  Algebra  -> Sequences-and-series -> SOLUTION: Find the annual rate of growth on an account that was worth $1000 in 1996 and was worth $1400 in 1999. I have tried like this: 1996-1999 is 3 years, and it had raised $400 400/      Log On

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Question 236027: Find the annual rate of growth on an account that was worth $1000 in 1996 and was worth $1400 in 1999.
I have tried like this: 1996-1999 is 3 years, and it had raised $400
400/1000 x 100= 40% which means it has raised 40% in 3 years, so is the answer 40/3= 13.33% per year????
Please tell me if i'm right or wrong. Thanks very much!

Answer by scott8148(5895) About Me  (Show Source):
You can put this solution on YOUR website!
well...the problem is, there is growth on growth

try this ___ 1400 = 1000 (1 + r)^3