Drug needed: 38.5 milligrams
Drug per tablet: 19.25 milligrams
We have to write an equation.
The amount of drug in each tablet multiplied by the number of tablets (x) must be equal to the amount of drug needed.
19.25 x = 38.5
Solve for x:
x = 38.5/19.25
x = 2
The nurse has to administer 2 tablets.