Posted by **katrina** on Thursday, March 3, 2011 at 5:40pm.

Twenty percent of a radioactive substance decays in ten years. By what percent does the substance decay each year?

## Answer This Question

## Related Questions

- Science - Radioactive substance decays so that after t years, the amount ...
- Math - A radioactive substance decays according to the formula Q(t) = Q0e−...
- Math - A radioactive substance decays according to the formula Q(t) = Q0e−...
- Pre Calculus 1 - thirty percent of a radioactive substance decays in four years...
- calculus - The rate at which an amount of a radioactive substance decays is ...
- Calculus-derivatives - Verify if these are correct answers. 1. The derivative of...
- Pre Calculus - Exponential growth and decay find the half life of a radioactive ...
- algebra - A radioactive substance decays according to the formula A=A0e^kt where...
- Physics - A radioactive substance decays from 2.0kg to 1.6kg in 156 days. What ...
- Calculus - a certain radioactive substance is decaying so that at time t, ...

More Related Questions