What is x when 80 divided by x equals 12?

To find the answer, just divide the dividend by the quotient: 80 ÷ 12 = 6.6666666666667

To prove this, let's compute 80 divided by 6.6666666666667: $\frac{80}{6.6666666666667} = 12$

How does it work?

Asking what the value of x could be when 80 divided by x gives a result of 12, is equivalent to solving the following equation:

$\frac{80}{x} = 12$

Multiply both sides by x: $\frac{80 x}{x} = 12 x$
$\frac{80 x}{x}$ is equivalent to $\frac{x}{x} \times 80$ , which simplifies to $1 \times 80$ (or just $80$ ).
Thus, the equation becomes: $80 = 12 x$
To find x, divide both sides by 12: $\frac{80}{12} = \frac{12 x}{12}$
Which gives, after simplification: $6.6666666666667 = x$ (or $x = 6.6666666666667$ )

So, if the dividend is 80 and the quotient is 12, the divisor is 6.6666666666667.