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Mathematics, 14.12.2020 23:30 Jacobstoltzfus

PLEASE HELP In a certain chemical, the ratio of zinc to copper is 4 to 15. A jar of the chemical contains
315 grams of copper. How many grams of zinc does it contain?

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PLEASE HELP In a certain chemical, the ratio of zinc to copper is 4 to 15. A jar of the chemical co...

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