19 out of the 76 students at a school assembly were first-grade students. What percentage of the students at the assembly were first-graders?

Write your answer using a percent sign (%).

1 answer

To find the percentage of first-grade students at the assembly, you can use the formula:

\[ \text{Percentage} = \left( \frac{\text{Number of first-graders}}{\text{Total number of students}} \right) \times 100 \]

Substituting in the values:

\[ \text{Percentage} = \left( \frac{19}{76} \right) \times 100 \]

First, calculate \( \frac{19}{76} \):

\[ \frac{19}{76} = 0.25 \]

Now, multiply by 100:

\[ 0.25 \times 100 = 25 \]

Thus, the percentage of the students at the assembly who were first-graders is:

\[ \boxed{25%} \]