What is x when 57 divided by x equals 79?

To find the answer, just divide the dividend by the quotient: 57 ÷ 79 = 0.72151898734177

To prove this, let's compute 57 divided by 0.72151898734177: $\frac{57}{0.72151898734177} = 79$

How does it work?

Asking what the value of x could be when 57 divided by x gives a result of 79, is equivalent to solving the following equation:

$\frac{57}{x} = 79$

Multiply both sides by x: $\frac{57 x}{x} = 79 x$
$\frac{57 x}{x}$ is equivalent to $\frac{x}{x} \times 57$ , which simplifies to $1 \times 57$ (or just $57$ ).
Thus, the equation becomes: $57 = 79 x$
To find x, divide both sides by 79: $\frac{57}{79} = \frac{79 x}{79}$
Which gives, after simplification: $0.72151898734177 = x$ (or $x = 0.72151898734177$ )

So, if the dividend is 57 and the quotient is 79, the divisor is 0.72151898734177.