Question

A radioactive material loses 25% of its mass in 10 minutes. Find its half-life.

Answer 1

@hartnn @satellite73 @Compassionate

Answer 2

\[.75^{\frac{t}{10}}=.5\] solve for \(t\)

Answer 3

\[\frac{t}{10}=\frac{\ln(.5)}{\ln(.75)}\] by the change of base formula

Answer 4

Thank you so much!