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An item costs $320 before tax, and the sales tax is $6.40.Find the sales tax rate. Write your answer as a percentage.I need help with this msth problem

1 Answer

7 votes

we know that

$320 --------> represents the 100% percentage

so

Applying proportion

Find out how much percentage represents $6.40

therefore


\begin{gathered} (100\%)/(320)=(x)/(6.40) \\ \\ x=\frac{100\operatorname{\%}}{320}*6.40 \\ \\ x=2\% \end{gathered}

The answer is 2%

User Badr B
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