Why is the color model CMYK commonly used in printing?

The CMYK color model is commonly used in printing because it is a subtractive color model that is effective in mixing colors for printing purposes. CMYK stands for cyan, magenta, yellow, and key (black), and these colors can be combined in varying amounts to create a wide range of colors for printing. This model is used in printing because it accurately represents the colors that can be produced by mixing ink on paper, making it ideal for producing high-quality printed materials.