# 18 is 9% of what number?

18 is 9% of what number?
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Macsen Nixon

$X\mathrm{%}$ of a number is found by multiplying the number by $\frac{X}{100}$. If 18 is 9% of x, then:
$\frac{99}{100}×x=18$
Multiply both sides by $100:9x=1800$
Divide both sides by $9:x=200$