Final answer:
The percentage of boys at Brackenridge Elementary is calculated by dividing the number of boys by the total number of students and then multiplying by 100, which results in 52.38%.
Step-by-step explanation:
To calculate the percentage of students who are boys at Brackenridge Elementary, we need to determine the total number of students first. Adding the number of girls (250) to the number of boys (275) gives us the total: 250 girls + 275 boys = 525 students total.
Next, we calculate the percentage of students who are boys by using the following formula: (Number of Boys / Total Number of Students) × 100. Plugging in the numbers for our case, we get: (275 boys / 525 students) × 100 = 52.38%.
Therefore, 52.38% of the students at Brackenridge Elementary are boys.