Answer:
2.5 mL/h
Step-by-step explanation:
You want to know the number of mL per hour of a medicine supplied as 20 units/100 mL would be needed to administer 0.5 units/h.
Rate
The conversion of rates can be done by paying attention to the dimensional analysis:
[tex]\dfrac{0.5\text{ units}}{\text{hour}}= \dfrac{0.5\text{ units}}{\text{hour}}\div\dfrac{20\text{ units}}{100\text{ ml}}=\dfrac{(0.5\text{ units)(100\text{ mL})}}{(20\text{ units})(\text{hour})}\\\\\\=\boxed{2.5\text{ mL/hour}}[/tex]
