Question

A new blu-ray player costs $87.99 in the store. What would your total cost be if the sales tax is 6.5%? Round your answer to the nearest cent, if necessary.

Answer 1

The sales tax is 6.5% of $87.99. If $87.99 represents 100%, to find the 6.5% we can use the next proportion:

`\frac{87.99\text{ \$}}{x\text{ \$}}=\frac{100\text{ \%}}{6.5\text{ \%}}`

Solving for x:

`\begin{gathered} 87.99\cdot6.5=100\cdot x \\ (571.9)/(100)=x \\ 5.72=x \end{gathered}`

The sales tax is $5.72. In consequence, the total cost is:

`\begin{gathered} \text{total cost = price + sales tax} \\ \text{total cost = \$}87.99+\text{\$}5.72 \\ \text{total cost = \$}93.71 \end{gathered}`