SOLUTION: Hello, could you help me with writing a function, all I need is the function to understand it, I dont need an explanation. A radioactive isotope is produced, it takes 20 minutes

Question 59163: Hello, could you help me with writing a function, all I need is the function to understand it, I dont need an explanation.
A radioactive isotope is produced, it takes 20 minutes to double the existing amount of the isotope. write an equation for the number of isotopes, n, as a function of time.
thanks.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A radioactive isotope is produced, it takes 20 minutes to double the existing amount of the isotope. write an equation for the number of isotopes, n, as a function of time.
-------------------
Let A(0) mean "the amount of isotope you start with".
Let A(t) mean "the amount of isotope at time t-minutes".
EQUATION:
A(t)=A(0)*(2)^(t/20)
This will multiply the the amount you start with by
2 every 20 seconds.
Cheers,
Stan H.

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