Question

8 1/2% of what is 20?

Answer 1

then we need to find a original number multiplied by the percent and what solution is 20

we wirte a relation

`\begin{gathered} 8(1)/(2)\longrightarrow20 \\ \\ 100\longrightarrow x \end{gathered}`

because 8 1/2% is equivalent to 20 and we need to find the 100%

now to find x(missing value) we multiply the diagonal numbers (100 and 20) and divide between 8 1/2

`x=(100*20)/(8(1)/(2))`

to multiply we transform the mixed number to decimal

`8(1)/(2)=8.5`
`x=(100*20)/(8.5)`

and solve

`x=235.3`

Finally

8 1/2% of 235.3 is 20