What is x when 68 divided by x equals 15?

To find the answer, just divide the dividend by the quotient: 68 ÷ 15 = 4.5333333333333

To prove this, let's compute 68 divided by 4.5333333333333: $\frac{68}{4.5333333333333} = 15$

How does it work?

Asking what the value of x could be when 68 divided by x gives a result of 15, is equivalent to solving the following equation:

$\frac{68}{x} = 15$

Multiply both sides by x: $\frac{68 x}{x} = 15 x$
$\frac{68 x}{x}$ is equivalent to $\frac{x}{x} \times 68$ , which simplifies to $1 \times 68$ (or just $68$ ).
Thus, the equation becomes: $68 = 15 x$
To find x, divide both sides by 15: $\frac{68}{15} = \frac{15 x}{15}$
Which gives, after simplification: $4.5333333333333 = x$ (or $x = 4.5333333333333$ )

So, if the dividend is 68 and the quotient is 15, the divisor is 4.5333333333333.