Tuesday

January 27, 2015

January 27, 2015

Posted by **HM** on Tuesday, September 27, 2011 at 1:38am.

How many years to the nearest year would be required for a given amount of this isotope to decay to 55% of that amount.

So I am not sure where to put the 1,300

1,300=2600*e^t

or A=x*e^1300

**Answer this Question**

**Related Questions**

MATH help - a certain radioactive isotope has a half life of approx 1,300 years...

MATH help - a certain radioactive isotope has a half life of approx 1,300 years...

MATH help - a certain radioactive isotope has a half life of approx 1,300 years...

college - a certain radioactive isotope has a half life or 850 years.how many ...

Math - How do I solve this if there is no equation to this 1. The population of ...

Math - D.E.Q. - The half-life of a radioactive isotope is the amount of time it ...

Chemistry - Which radioactive sample would contain the greatest remaining mass ...

Chemistry - The isotope caesium-137, which has a half life of 30 years, is a ...

math - Radioactive radium has a half-life of approximately 1599 years. What ...

math - Radioactive radium has a half-life of approximately 1599 years. What ...