To find out what number 15 is 30% of, we can set up a simple equation. Let’s use ‘x’ to represent the unknown number.
The equation can be written as:
15 = 30% of x
This can also be expressed mathematically as:
15 = 0.30 * x
Now, to solve for ‘x’, we can divide both sides of the equation by 0.30:
x = 15 / 0.30
Calculating this gives us:
x = 50
Therefore, 15 is 30% of 50. To check our work, we can calculate 30% of 50 and see if we get 15:
30% of 50 = 0.30 * 50 = 15, which confirms our answer is correct.