At the beginning of an experiment, a scientist has 352 grams of radioactive goo. After 120 minutes, her sample has decayed to 44 grams. What is the half-life of the goo in minutes?

Question

please help this assignment is due soon

Answer 1

Half of 352 = 176

half of 176 = 88

half of 88 = 44

You went from 352 to 44 in 3 time periods, totaling 120 minutes

Divide 120 by 3 = 40 minutes is the half life