Question

80% of what number is 140? ( set up and show work here).

Answer 1

Let the unknown number be x.

80% of x is 140. This is written to be:

`(80)/(100)* x=140`

We can solve for x as follows:

Multiply both sides by 100:

`80x=14000`

Divide both sides by 80:

`\begin{gathered} x=(14000)/(80) \\ x=175 \end{gathered}`

The number is 175.