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Mathematics 7 Online
OpenStudy (semaj.zachary):

When a person receives a drug injected into a muscle, the concentration of the drug in the body changes over time. After 3 hours the concentration is 0.05 and at 7 hours, the concentration is 0.02. Assuming the rate of change continues at this rate, how long before the drug no longer exists in the persons body.

OpenStudy (semaj.zachary):

This an algebra question....

OpenStudy (anonymous):

See the graph at y= 0

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