A culture of bacteria begins with 350 bacteria, and every 4 days 25% of the bacteria dies off. Let b be the 1-day decay factor.
a. What is the 4-day decay factor as a numeric value? What is the 4-day decay factor in terms of b?
b. Use your results from part (a) to find b, the 1-day decay factor. b =
c. Find the 1-week decay factor.
d. Find the 12-hour decay factor.
2. Three hours after taking a pain medication, 41% of the medication still remains in the bloodstream. Let m be the 1-hour decay factor.
a. What is the 3-hour decay factor as a numeric value? What is the 3-hour decay factor in terms of m?
b. Use your results from part a. to find the 1-hour decay factor.
c. Find the 6-hour decay factor.
d. Find the 15-minute decay factor.