16 % of tiles are black
Solution:
Given that floor tiles come in red, blue, and black
To find: percent of the tiles that are black
From given question,
number of red tiles = 16
number of blue tiles = 5
number of black tiles = 4
Therefore, total number of tiles = number of red tiles + number of blue tiles + number of black tiles
![\rightarrow 16 + 5 + 4 = 25](https://img.qammunity.org/2021/formulas/mathematics/middle-school/whz5j6x5kuvz6jkt6kge4tgd9d2s7yuphp.png)
Thus total number of tiles = 25
To percent of the tiles that are black, use the following formula:
![\text{ percent black} = \frac{\text{ number of black tiles }}{\text{ total number of tiles }} * 100](https://img.qammunity.org/2021/formulas/mathematics/middle-school/caaxca75q90d3meqiydg8ax2cqd8c551wj.png)
![\rightarrow (4)/(25) * 100\\\\\rightarrow 4 * 4 = 16](https://img.qammunity.org/2021/formulas/mathematics/middle-school/wx3w9q6du7g4ez8kpxv8ydtz71d1lv8uo1.png)
Thus 16 % of tiles are black