Answer :
Answer:
1.5 ml
Step-by-step explanation:
We have been given that the concentration on hand is 10 mg per ml.
We know that gr stands for grains.
We know that 1 gr equals 60 mg.
First of all, we will convert 1/4 gr to mg as:
[tex]\frac{1}{4}\text{ gr}\times \frac{60\text{ mg}}{\text{ gr}}[/tex]
[tex]\frac{1}{4}\times 60\text{ mg}[/tex]
[tex]15\text{ mg}[/tex]
1 ml equals 10 mg. We can set an a proportion as:
[tex]\frac{x}{15\text{ mg}}=\frac{\text{1 ml}}{10\text{ mg}}[/tex]
[tex]\frac{x}{15\text{ mg}}*15\text{ mg}=\frac{\text{1 ml}}{10\text{ mg}}*15\text{ mg}[/tex]
[tex]x=\text{1 ml}*1.5[/tex]
[tex]x=\text{1.5 ml}[/tex]
Therefore, 1.5 ml is needed for the dose.