Question

Destiny needs a new coat for the winter and she found one at Old Navy for $48.88. The sale tax is 8%. How much will she pay for the sales tax? How much will she pay all together? SHOW ALL OF YOUR WORK.

Answer 1

Hello!

First, let's consider the value of $48.88 as 100%. Then, we have to find how many correspond to 8% of it. We can calculate it using the rule of three:

`\begin{gathered} (48.88)/(x)=(100)/(8) \\ \\ \text{ multiplying across} \\ x\cdot100=8\cdot48.88 \\ 100x=391.04 \\ x=(391.04)/(100) \\ x\cong3.91 \end{gathered}`

So, the sales tax is $3.91.

Now, we have to add the price of the coat with the sale tax:

$48.88 + $3.91 = $52.79

If she pays all together, the cost will be $52.79.