Problem 88 of 7
Explain why the percent-change situation a drug concentration in the bloodstream decreases by 20 percent every 4 hours indicates exponential behavior.
Hints
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
connect percent to multiplicative factor.
Hidden until you reveal it.
Situation must use repeated percent change.
Enter your answer
No answer yet
Correct
Your answer is equivalent to the expected form.
Solution
Walkthrough
Walkthrough shown
Full solution stays hidden until you ask for it.
1. Convert percent change to a multiplier.
2. Explain that the multiplier applies to the current amount each period.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Treating percent as a fixed added amount.