Reyna's goal to find the quotient of 15 + 3 is ambiguous as it could mean sum or division. The correct answer to 15 divided by 3 is 5, which can also be found by repeated subtraction of 3 from 15 until reaching zero.
Reyna is trying to find the quotient of the expression 15 + 3. When evaluating such expressions, it's important to use correct mathematical operations and principles.
If Reyna is meant to find the sum of 15 and 3, then she would add the numbers to get 18. However, if the goal is to divide the number 15 by 3, then she would calculate 15 ÷ 3, resulting in 5 equal groups of 3. This is because division is essentially determining how many groups of a certain number will fit into another number.
Furthermore, Reyna could approach this problem by repeated subtraction. This would involve subtracting 3 from 15 repeatedly until reaching zero. The number of subtractions required would then give the quotient, which in this case would be 5. So, the correct answer to the division 15 ÷ 3 is 5, which means options a and e cannot be true. This is based on the universally valid rules of mathematics that are foundationally consistent no matter the context or application.