What is x when 70 divided by x equals 78?

To find the answer, just divide the dividend by the quotient: 70 ÷ 78 = 0.8974358974359

To prove this, let's compute 70 divided by 0.8974358974359: $\frac{70}{0.8974358974359} = 78$

How does it work?

Asking what the value of x could be when 70 divided by x gives a result of 78, is equivalent to solving the following equation:

$\frac{70}{x} = 78$

Multiply both sides by x: $\frac{70 x}{x} = 78 x$
$\frac{70 x}{x}$ is equivalent to $\frac{x}{x} \times 70$ , which simplifies to $1 \times 70$ (or just $70$ ).
Thus, the equation becomes: $70 = 78 x$
To find x, divide both sides by 78: $\frac{70}{78} = \frac{78 x}{78}$
Which gives, after simplification: $0.8974358974359 = x$ (or $x = 0.8974358974359$ )

So, if the dividend is 70 and the quotient is 78, the divisor is 0.8974358974359.