Respuesta :
We are given, a certain food has a gluten ratio of [tex]13 \frac{mg}{L}[/tex].
We need to convert milligrams per liter into micro-grams per milliliter.
1 mg = 1000 micro-grams.
And 1 L = 1000 milliliter.
Substituting 1 mg = 1000 micro-grams and 1 L = 1000 milliliter, we get
[tex]13 \frac{1000 \ micro-grams}{1000 \ milliliter} = 13 \frac{micro-grams}{milliliter}[/tex]