Taylor R.

asked • 04/18/16

help me solve this problem?

suppose that when a particular drug is injected, the concentration is 1.5mg/mL. After 4 hours, the concentration has dropped to 0.25mg/mL. Solve for the decay constant, k, and write an exponential decay equation. How long would it take for the concentration to drop to 0.10mg/mL?

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