Answered

the floor tiles come in red, blue, and black there are 11 red, 5 blue, and 4 black tiles, what percentage of tiles are black



Answer :

reinhard10158

Step-by-step explanation:

for questions about % always establish what is 100% and then 1%.

in our case

100% = all tiles = 11 + 5 + 4 = 20 tiles.

1% = 100%/100 = 20/100 = 0.2

how many are black tiles = 4 out of 20 tiles ?

well as many % as times the 1% fits into 4 :

4 / 0.2 = 4 / 2/10 = 40/2 = 20%

the 4 black tiles are 20% of the overall 20 tiles.

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