Answer:
in English please
I'll help if you translate this into English
Well 9/5 (basically 9 divided by 5) is 1.8 so -1.809 - 1.8 is -3.609
16 % of tiles are black
<em><u>Solution:</u></em>
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

Thus total number of tiles = 25
<em><u>To percent of the tiles that are black, use the following formula:</u></em>


Thus 16 % of tiles are black