What is x when 80 divided by x equals 28?

To find the answer, just divide the dividend by the quotient: 80 ÷ 28 = 2.8571428571429

To prove this, let's compute 80 divided by 2.8571428571429: $\frac{80}{2.8571428571429} = 28$

How does it work?

Asking what the value of x could be when 80 divided by x gives a result of 28, is equivalent to solving the following equation:

$\frac{80}{x} = 28$

Multiply both sides by x: $\frac{80 x}{x} = 28 x$
$\frac{80 x}{x}$ is equivalent to $\frac{x}{x} \times 80$ , which simplifies to $1 \times 80$ (or just $80$ ).
Thus, the equation becomes: $80 = 28 x$
To find x, divide both sides by 28: $\frac{80}{28} = \frac{28 x}{28}$
Which gives, after simplification: $2.8571428571429 = x$ (or $x = 2.8571428571429$ )

So, if the dividend is 80 and the quotient is 28, the divisor is 2.8571428571429.