SOLUTION: A certain radioactive isotope has a half-life of approximately 1700 years. How many years to the nearest year would be required for a given amount of this isotope to decay to 25% o

Algebra.Com
Question 319140: A certain radioactive isotope has a half-life of approximately 1700 years. How many years to the nearest year would be required for a given amount of this isotope to decay to 25% of that amount?
Answer by scott8148(6628)   (Show Source): You can put this solution on YOUR website!
25% is 1/4 which is 1/2 of 1/2 ___ so, 2 half-lives
RELATED QUESTIONS

A certain radioactive isotope has a half life of approximately 850 years . How many years (answered by ewatrrr)
A certain radioactive isotope has a half-life of approximately 850 years. How many years... (answered by stanbon)
A certain radioactive isotope has a half life of aprox 1600 years. How many years to the... (answered by stanbon)
This word problem is very confusing, help me find out the answer: A certain radioactive... (answered by ankor@dixie-net.com)
A certain radioactive isotope has a​ half-life of approximately 78 years. How many... (answered by josgarithmetic,ikleyn)
In the formula A = I^ekt, A is the amount of radioactive material remaining from an... (answered by josgarithmetic)
Use the formula N=Ie^kt, where N is the number of items of the initial population "I", at (answered by Boreal)
A certain radioactive isotope decays at a rate of 0.1% annually. Determine the half-life... (answered by stanbon)
A certain radioactive isotope decays at a rate of 0.1% annually. Determine the half-life (answered by ewatrrr)