In a certain chemical, the ratio of zinc to copper is 4 to 13. A jar of the chemical contains 286 of copper. How many grams of zinc does it contain?

Question

asked Jun 22, 2021 104k views

1 Answer

Jon Weers · Answer 1 · 2021-06-28T17:33:34+0000

Answer: It contains 88 g of zinc.

Explanation:

Given: The ratio of zinc to copper is 4 to 13.

Ratio can be written as
$\frac4{13}$

A jar of the chemical contains 286 g of copper.

Let the quantity of zinc be x.

By using the direct proportion rule:
(x_1)/(y_1)=(x_2)/(y_2)

$(x)/(286)=(4)/(13)\\\\ x=(286*4)/(13)\\\\\Rightarrow\ x=88$

Hence, It contains 88 g of zinc.