Question

You can buy 2 dvds for the same price a you would pay for 3 cds selling for $13.20 apiece. explain how you could find the price of 1dvd.

Answer 1

2 dvds = 3cds($13.20 a piece)
2dvds = 39.60
2x = 39.60    Divide by 2 on both sides
x = 19.80 (the price of one dvd)