Salma bought 3 CDs that were each the same price. Including sales tax, she paid a total of $52.50. Of that total, $3.30 was tax. What was the price of each CD before tax?
Let's denote the price of each CD before tax as x.
The total price of the three CDs before tax would then be 3x.
We know that the total price including sales tax is $52.50, and the tax amount is $3.30.
Therefore, we can write the equation: 3x + $3.30 = $52.50.
Subtracting $3.30 from both sides of the equation gives: 3x = $52.50 - $3.30.
Simplifying the right side gives: 3x = $49.20.
Dividing both sides of the equation by 3 gives: x = $49.20 / 3.
Thus, the price of each CD before tax was $<<49.20/3=16.40>>16.40. Answer: \boxed{16.40}.
To find the price of each CD before tax, we need to subtract the tax from the total amount paid and then divide it by the number of CDs.
Total amount paid: $52.50
Tax paid: $3.30
Amount paid without tax: $52.50 - $3.30 = $49.20
Since Salma bought 3 CDs, we divide the amount paid without tax by the number of CDs:
Price of each CD before tax: $49.20 / 3 = $16.40
Therefore, the price of each CD before tax is $16.40.