What is x when 43 divided by x equals 85?

To find the answer, just divide the dividend by the quotient: 43 ÷ 85 = 0.50588235294118

To prove this, let's compute 43 divided by 0.50588235294118: $\frac{43}{0.50588235294118} = 85$

How does it work?

Asking what the value of x could be when 43 divided by x gives a result of 85, is equivalent to solving the following equation:

$\frac{43}{x} = 85$

Multiply both sides by x: $\frac{43 x}{x} = 85 x$
$\frac{43 x}{x}$ is equivalent to $\frac{x}{x} \times 43$ , which simplifies to $1 \times 43$ (or just $43$ ).
Thus, the equation becomes: $43 = 85 x$
To find x, divide both sides by 85: $\frac{43}{85} = \frac{85 x}{85}$
Which gives, after simplification: $0.50588235294118 = x$ (or $x = 0.50588235294118$ )

So, if the dividend is 43 and the quotient is 85, the divisor is 0.50588235294118.