Question

If 90% of x is 315km, then what is the value of x.

Answer 1

Here is your answer

Hope it helps you.

Answer 2

If $\frac{90}{100}$ is equal to 315, we should start by finding $\frac{10}{100}$

To do this, we decide each side by 9, which is should become:

$\frac{10}{100}$ = 35

To make the $\frac{10}{100}$ a whole ($\frac{100}{100}$ , we must times each side by ten.

35 x 10 = 350

So 100% is 350

Your answer would be 350