Question

Karen paid $43.70 for a book. The price of the book was $40. what was the sale tax rate

Answer 1

the sales tax rate is 9.24 percent

Answer 2

9.25%

Explanation:

We have the price book of $40 but karen pais $43.70 then the $3.70 extra that she paid it's the value of taxes. Then to know the tax rate we have to do the next procediment:

`$40\longrightarrow 100\%[\text]</p><p>[tex]$3.70\longrightarrow x\%`

Where x is the tax rate, then:

`x=(\$3.70\cdot 100\%)/(\$40)`

`x=(370\%)/(40)=9.25\%`