What is x when 79 divided by x equals 20?

To find the answer, just divide the dividend by the quotient: 79 ÷ 20 = 3.95

To prove this, let's compute 79 divided by 3.95: $\frac{79}{3.95} = 20$

How does it work?

Asking what the value of x could be when 79 divided by x gives a result of 20, is equivalent to solving the following equation:

$\frac{79}{x} = 20$

Multiply both sides by x: $\frac{79 x}{x} = 20 x$
$\frac{79 x}{x}$ is equivalent to $\frac{x}{x} \times 79$ , which simplifies to $1 \times 79$ (or just $79$ ).
Thus, the equation becomes: $79 = 20 x$
To find x, divide both sides by 20: $\frac{79}{20} = \frac{20 x}{20}$
Which gives, after simplification: $3.95 = x$ (or $x = 3.95$ )

So, if the dividend is 79 and the quotient is 20, the divisor is 3.95.