AnswersGA-Advanced Algebra Concepts and Connections CRProportionsQuestion 9
9
QuizMultiple Choice

Proportions

Question 9 • GA-Advanced Algebra: Concepts and Connections CR

To control an infection, a doctor recommends that a patient who weighs 92 pounds be given 320 milligrams of antibiotic. If the antibiotic is given proportionally according to the patient's weight, how much antibiotic should be given to a patient who weighs 138 pounds?

Answer
A
400 milligrams
B
480 milligrams
C
550 milligrams
D
600 milligrams

Explanation

The antibiotic dose is proportional to weight. Since 138 pounds is 1.5 times 92 pounds, multiply the original dose by 1.5: 320 × 1.5 = 480 milligrams. Therefore, the correct choice is B, 480 milligrams.

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