Solve the Problem $\mathrm { d } ( \mathrm { x } ) = \frac { \mathrm { Dx } } { \mathrm { x } + 9 } , 0 \leq \mathrm { x } \leq 12$

question 126

Multiple Choice

Solve the problem.
-To calculate the drug dosage for a child, a pharmacist may use the formula $\mathrm { d } ( \mathrm { x } ) = \frac { \mathrm { Dx } } { \mathrm { x } + 9 } , 0 \leq \mathrm { x } \leq 12$ . The child's age is $x$ and the adult dosage is $D$ . What is the dosage for an 3 -year old child if the adult dosage is $10 \mathrm { mg }$ ? (Round to the nearest tenth.)

• A) \(0.8 \mathrm { mg }\)
• B) \(3.3 \mathrm { mg }\)
• C) \(2.5 \mathrm { mg }\)
• D) \(10.0 \mathrm { mg }\)

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Definitions:

Psychological

Pertains to the mind or mental processes and how these affect behavior and well-being.

Psychoactive Drugs

Substances that can alter perception, mood, consciousness, or behavior by affecting the central nervous system.

Lethal Overdose

The consumption of a toxic amount of a substance, which is sufficient to cause death.

Hallucinogens

Substances that induce alterations in perception, thought, and mood, often causing the user to experience visual or auditory hallucinations.