What is x when 87 divided by x equals 88?

To find the answer, just divide the dividend by the quotient: 87 ÷ 88 = 0.98863636363636

To prove this, let's compute 87 divided by 0.98863636363636: $\frac{87}{0.98863636363636} = 88$

How does it work?

Asking what the value of x could be when 87 divided by x gives a result of 88, is equivalent to solving the following equation:

$\frac{87}{x} = 88$

Multiply both sides by x: $\frac{87 x}{x} = 88 x$
$\frac{87 x}{x}$ is equivalent to $\frac{x}{x} \times 87$ , which simplifies to $1 \times 87$ (or just $87$ ).
Thus, the equation becomes: $87 = 88 x$
To find x, divide both sides by 88: $\frac{87}{88} = \frac{88 x}{88}$
Which gives, after simplification: $0.98863636363636 = x$ (or $x = 0.98863636363636$ )

So, if the dividend is 87 and the quotient is 88, the divisor is 0.98863636363636.