Solving half-life problems with exponential decay — Krista King Math | Online math help

SOLVED:use an exponential model to solve the problem. Radioactive Decay The half-life of phosphorus- 32 is about 14 days. There are 6.6 grams present initially. (a) Express the amount of phosphorus- 32 remaining as a function of time t. (b) When will there be 1 gram remaining?

SOLVED: Use the exponential decay model, A = Ao * e^(-kt) to solve the following:The half-life of a certain substance is 16 years. How long will it take for a sample of this substance to decay 88% of its original amount?It will take approximately (Round to one decimal place as needed):for the sample of the substance to decay to 88% of its original amount: