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Write an equation and solve. Round to the nearest hundredth where necessary.

21 is 35% of what number?

User Xiaq
by
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1 Answer

6 votes

\sf Hello!


\sf Let \:the \:number\: be\: x.


\sf Then,


\sf 35 %
\sf of \:x = 21


(\sf 35)/(\sf 100) × \sf x = 21


\sf x = 21 × (\sf 100)/(\sf 35)


\sf x = 3 × (\sf 100)/(\sf 5)


\sf x = \sf 3 × 20
\boxed{\sf x = 60}


\sf Therefore,


\sf 35 %
\sf of\: 60\: is\: 21

~
\sf iCarl
User NTP
by
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