Question

In a certain​ chemical, the ratio of zinc to copper is 3 to 13. A jar of the chemical contains 286 grams of copper. How many grams of zinc does it​ contain?

Answer 1

The jar of chermical contains 66g of Zinc.

Explanation:

The ratio of Zinc to Copper is 3 : 13

A jar of the chemical contains 286g of copper.

Let the mass of the Zinc be xg.

`(13)/(3)` =
`(286)/(x)`

x =
`(3 × 286)/(13)` = 66g

So the jar of chemical contains 66g of Zinc.