The product of two rational number is 15. If one of the numbers is ` 10` , find the other.

Explanation

To find the other rational number when the product of two rational numbers is 15 and one of the numbers is -10, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Problem**: We know that the product of two rational numbers is 15. One of the numbers is -10. We need to find the other number.

2. **Set Up the Equation**: Let the other number be represented by the variable \( y \). According to the problem, we can set up the equation:
\[
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