Answer :
Final answer:
A child's oral Motrin suspension contains 100 milligrams per teaspoonful. 20 milligrams represent b) 1/4 of a dosage
Explanation:
To determine what part of a dosage 20 milligrams represents in the child's oral Motrin suspension, we can set up a proportion based on the concentration of the suspension.
Given:
The Motrin suspension contains 100 milligrams per teaspoonful.
We want to find the fraction of a dosage represented by 20 milligrams.
Let "x" be the fraction we are trying to find. We can set up the proportion as follows: (20 mg) / (100 mg) = x / 1
Now, cross-multiply to solve for "x":
20 mg * 1 = 100 mg * x
20 = 100x
To isolate "x," divide both sides by 100:
x = 20 / 100
x = 1/5
So, 20 milligrams represents 1/5 of a dosage. However, since the options provided are not in fractional form but rather as multiple-choice options, we can express 1/5 as 1/4 (since 1/5 is equal to 20/100, which simplifies to 1/4). Therefore, 20 milligrams represents 1/4 of a dosage.
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