Question

In a chemical compound, there are 3 parts zinc (y) for every 16 parts copper (x). What is the constant of proportionality (k) between copper and zinc?

a) k = 3/16
b) k = 16/3
c) k = 19
d) k = 1/19

Answer 1

The constant of proportionality between copper and zinc is 16/3.

Step-by-step explanation:

To determine the constant of proportionality (k) between copper and zinc, we need to compare the ratio of copper to zinc in the compound. According to the given information, there are 3 parts zinc (y) for every 16 parts copper (x). So the ratio of copper to zinc is 16:3 or 16/3. Therefore, the constant of proportionality (k) between copper and zinc is k = 16/3, which is option b) in the question.