Question

In a certain chemical, the ratio is zinc to copper is 4 to 15. A jar of the chemical contains 570 grams of copper, how many zinc does it contain

Answer 1

zinc = 152 grams

Explanation:

Ratio of zinc to copper = 4 : 15

Copper = 570 grams

zinc = x grams

Find x

Ratio of zinc to copper = x : 570

Equate both ratios

4 : 15 = x : 570

4/15 = x/570

Cross product

4 * 570 = 15 * x

2,280 = 15x

x = 2,280/15

= 152

x = 152 grams

zinc = 152 grams