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iren [92.7K]
3 years ago
8

42 is 21% of what number

Mathematics
2 answers:
Gnom [1K]3 years ago
5 0
\begin{array}{ccc}42&-&21\%\\x&-&100\%\end{array}\ \ \ \ \ |cross\ multiply\\\\21x=42\times100\\\\21x=4200\ \ \ \ \ |divide\ both\ sides\ by\ 21\\\\\boxed{x=200}\leftarrow answer
kari74 [83]3 years ago
3 0
42/x =21/100
21x=4200
x=200
The answer is 200
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