Question

15 is 30% of what number? remember: is = of ·

Explanation:

Step1: Set up the equation

Let the number be $x$. We know that $15$ is $30\%$ (or $0.3$) of $x$. So the equation is $15 = 0.3x$.

Step2: Solve for $x$

Divide both sides of the equation by $0.3$. So $x=\frac{15}{0.3}$.
$x = 50$

Answer:

50