Question

An item costs $350 before tax, and the sales tax is $28.Find the sales tax rate. Write your answer as a percentage.

Answer 1

Let x be the tax rate. Hence, we can write

`350\cdot x=28`

then, we must move 350 to the righ hand side, it reads

`\begin{gathered} x=(28)/(350) \\ x=0.08 \end{gathered}`

and now, we must convert the rate in decimal form to percentage form.

The relation between these form is

`\begin{gathered} \text{percentage form=decimal form x 100} \\ \\ \end{gathered}`

Therefore, we have

`0.08\cdot100=8`

then, the answer in percentage is 8%.