Question

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

21 is 35% of what number?

Answer 1

`\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`