What is x when 78 divided by x equals 75?

To find the answer, just divide the dividend by the quotient: 78 ÷ 75 = 1.04

To prove this, let's compute 78 divided by 1.04: $\frac{78}{1.04} = 75$

How does it work?

Asking what the value of x could be when 78 divided by x gives a result of 75, is equivalent to solving the following equation:

$\frac{78}{x} = 75$

Multiply both sides by x: $\frac{78 x}{x} = 75 x$
$\frac{78 x}{x}$ is equivalent to $\frac{x}{x} \times 78$ , which simplifies to $1 \times 78$ (or just $78$ ).
Thus, the equation becomes: $78 = 75 x$
To find x, divide both sides by 75: $\frac{78}{75} = \frac{75 x}{75}$
Which gives, after simplification: $1.04 = x$ (or $x = 1.04$ )

So, if the dividend is 78 and the quotient is 75, the divisor is 1.04.