concrete is made by mixing cement, metal and sand in the ratio 2:5:1:. if 15 buckets of metal are used, then how many buckets of cement are needed

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Correct answer brainliest asap an d 99 pointsss what are relative frequencies to the nearest hundredth of the columns of two way table column a 102, 18 colunm b 34, 14 answers choices 0.15 0.25 0.29 0.44 0.56 0.71 0.75 0.85

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