Martina bought 5 CDs that were each the same price. Including sales tax, she paid a total of 79.50 . Each CD had a tax of 1.10. What was the price of each CD before tax?
Let x be the price of each CD before tax.
The total price of the 5 CDs before tax would be 5x.
The total tax for the 5 CDs would be 5 * 1.10 = $5.50.
Therefore, the total price including tax would be 5x + 5.50 = 79.50.
Solving for x:
5x + 5.50 = 79.50
5x = 74
x = 74 / 5
x = 14.80
Therefore, the price of each CD before tax was $14.80.