Question

What is the prescribed dosage of a certain medicine for a child 6 years old, if the adult dosage of the medicine is 180 milligrams?
C= a/((a+12)) ∙ 180
C = child’s dosage in milligrams
a = age of the child
A = adult dosage in milligrams

Answer 1

c+ childs dosage in miligrams

Answer 2

Answer:

60 milligrams is the right dosage for the child.

Step-by-step explanation:

The given expression is

$C=\frac{a}{(a+12)} \times 180$

Where $a=6$, because according to the problem, the child is 6 years old.

Replacing and solving, we have

$C=\frac{6}{(6+12) }\times 180=\frac{6}{18 }\times 180=60mg$

Therefore, if the adult dosage is 180 milligrams, and the child is 6 years old, the right dosage is 60 milligrams.