Final answer:
To find out what percent of the class are boys, add the number of girls and boys to get the total number of students (18+6=24), then divide the number of boys by the total number of students and multiply by 100 to get the percentage (25%).
Step-by-step explanation:
To determine what percent of Julie's class are boys, we need to use the information that there are 18 girls and 6 boys in the class. The total number of students in the class is the sum of the number of girls and boys, which is 18 + 6 = 24. The percentage of the class that are boys is calculated by dividing the number of boys by the total number of students and then multiplying the result by 100 to convert it to a percentage.
Step 1: Find the total number of students: 18 (girls) + 6 (boys) = 24 (total students).
Step 2: Calculate the percentage of boys: (6 boys / 24 total students) × 100 = 25%.
So, 25% of the class are boys.