HESI Math Practice Exam

To find the percentage of 15 out of 75, you can follow these steps:

First, you divide the part (15) by the whole (75):

\[

\frac{15}{75} = 0.2

\]

Next, to convert the decimal into a percentage, you multiply by 100:

\[

0.2 \times 100 = 20%

\]

Therefore, 15 is 20% of 75. This calculation confirms the answer is correct because you have found how much of the whole that part represents in percentage terms.

Understanding this method is essential because it demonstrates not just how to find a percentage, but also the logical steps involved in reaching a correct conclusion. This method can be applied to similar problems involving different numbers or contexts.