At the beginning of an experiment, there are 400 grams of contaminants. Each hour, three-fourths of the contaminants are filtere
d out.
1 answer:
Answer:
thats 300 grams filtered out per hour
Step-by-step explanation:
so 4/4ths of 400 is 400 but taking 3/4ths is turning it too 100 grams
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