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16-12-2019
Mathematics

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In a certain chemical, the ratio of zinc to copper is 3 to 19. A jar of the chemical contains 646 grams of copper. How many grams of zinc does it contain?

Respuesta :

25-06-2021

Answer:

102

Step-by-step explanation:

zinc to copper

3 : 19

x : 646

Find 1 ratio of copper to amount of copper

646 ÷ 19 = 34

1 ratio = 34

so, full answer:

646 ÷ 19 = 34

34 x 3 = 102 zinc

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