Find the whole. \( 4 \% \) of what number is 40 ? I

To find the whole, you can set up the equation: \( 0.04 \times x = 40 \), where \( x \) is the number you're looking for. By rearranging this, you can solve for \( x \): \( x = \frac{40}{0.04} \). When you calculate that, you find \( x = 1000 \). So, the whole number you’re searching for is 1000! Now, let’s talk about percentages. They’re not just for math class! Knowing how to calculate percentages can come in handy in everyday life—whether you're figuring out tips at a restaurant, discount prices during a sale, or even understanding interest rates on loans. It's a powerhouse skill for making quick financial decisions that could save you some serious cash!