MATH SOLVE

4 months ago

Q:
# The half-life of a radioactive substance is the average amount of time it takes for half of its atoms to disintegrate. Suppose you started with 200 grams of a substance with a half-life of 3 minutes. How many minutes have passed if 25 grams now remain? Explain your reasoning.

Accepted Solution

A:

3 half-lives because 200/2=100 100/2=50 and 50/2=25Β