Answer :
Answer:
3.33 milliliters.
Step-by-step explanation:
We have been given that a 125-mL container of amoxicillin contains 600 mg/5 mL.
First of all, we will find amount of mg's of amoxicillin per ml as:
[tex]\text{Concentration of amoxicillin per ml}=\frac{\text{600 mg}}{\text{5 ml}}[/tex]
[tex]\text{Concentration of amoxicillin per ml}=\frac{\text{120 mg}}{\text{ml}}[/tex]
Now, we will use proportions as:
[tex]\frac{\text{1 ml}}{\text{120 mg}}=\frac{x}{\text{400 mg}}[/tex]
[tex]\frac{\text{1 ml}}{\text{120 mg}}\times \text{400 mg}=\frac{x}{\text{400 mg}}\times \text{400 mg}[/tex]
[tex]\frac{\text{400 ml}}{120 }=x[/tex]
[tex]\text{3.33 ml}=x[/tex]
Therefore, 3.33 milliliters would be used to administer 400 mg of amoxicillin.