What is x when 30 divided by x equals 8?

To find the answer, just divide the dividend by the quotient: 30 ÷ 8 = 3.75

To prove this, let's compute 30 divided by 3.75: $\frac{30}{3.75} = 8$

How does it work?

Asking what the value of x could be when 30 divided by x gives a result of 8, is equivalent to solving the following equation:

$\frac{30}{x} = 8$

Multiply both sides by x: $\frac{30 x}{x} = 8 x$
$\frac{30 x}{x}$ is equivalent to $\frac{x}{x} \times 30$ , which simplifies to $1 \times 30$ (or just $30$ ).
Thus, the equation becomes: $30 = 8 x$
To find x, divide both sides by 8: $\frac{30}{8} = \frac{8 x}{8}$
Which gives, after simplification: $3.75 = x$ (or $x = 3.75$ )

So, if the dividend is 30 and the quotient is 8, the divisor is 3.75.