Question

In a certain chemical, the ratio of zinc to copper is 4 to 11. A jar of the chemical contains 418 grams of

copper. How many grams of zinc does it contain?
It contains
grams of zinc.

Answer 1

Explanation:

Zinc:copper = 4:11

Amount of zinc = 4x

Amount of copper = 11x

11x = 418

x = 38 grams

Amount of zinc = 4x = 152 grams