SOLUTION: find the orgianl amount when; carbon 14 half life is 5730 after 1000 year is 2g. what is the original amount. the answer is 2.26g. i need to know the formula.

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: find the orgianl amount when; carbon 14 half life is 5730 after 1000 year is 2g. what is the original amount. the answer is 2.26g. i need to know the formula.      Log On


   



Question 31854: find the orgianl amount when;
carbon 14 half life is
5730 after 1000 year is 2g. what is the original amount. the answer is 2.26g. i need to know the formula.

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Amount now = (Original amount)*(1/2)^(t/5730)
2 = P (1/2)^(1000/5730)
2= P (.8861)
P=2.2572...
Original amount was 2.2572.. grams
Cheers,
stan H.