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The problem states that Mrs. McKinney's class has 15 girls and 13 boys. The letter $s$ represents the total number of students in her class. We need to find the equation that can be used to find $s$.

ArithmeticAdditionWord ProblemBasic Arithmetic
2025/3/6

1. Problem Description

The problem states that Mrs. McKinney's class has 15 girls and 13 boys. The letter ss represents the total number of students in her class. We need to find the equation that can be used to find ss.

2. Solution Steps

To find the total number of students, we need to add the number of girls and the number of boys.
The number of girls is
1

5. The number of boys is

1

3. The total number of students $s$ is the sum of the number of girls and the number of boys.

ss = number of girls + number of boys
s=15+13s = 15 + 13
Therefore, the equation is 15+13=s15 + 13 = s.

3. Final Answer

15+13=s15 + 13 = s

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