Question

(1) A pharmacist received an order for 30 grams of 0.1%hydrocortisone cream for an infant. She mixed 3 grams of 1%hydrocortisone cream with 27 grams of cold cream. Did she fillthe order correctly? Justify your answer by calculations.(2) Which of the following numbers represent 4.5%?0.45, 0.045, 450, 4.50

Answer 1

Solution:

Given:

$4.5\text{ \%}$

A percentage is a number or ratio that represents a fraction of 100.

$\begin{gathered} 4.5\text{ \%}=\frac{4.5}{100} \\ =0.045 \end{gathered}$

Therefore, 4.5% represents 0.045