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20% of what number is 39

20% of what number is 39
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20% of what number is 39

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User Smudger
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\begin{array}{ccc}100\%&-&x\\\\20\%&-&39\end{array}\ \ \ |cross\ multiply\\\\\\20x=100\cdot39\\\\20x=3900\ \ \ \ |divide\ both\ sides\ by\ 20\\\\\boxed{x=195}
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User Kyorilys
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