Respuesta :

Answer:

k = 2.

Step-by-step explanation:

j = c/k where c is a constant.

When k = 3,  j = 12 so

12 = c/3

c = 36.

So the relation is j = 36/k

When j = 18

18 = 36 / k

So 18k = 36

k = 2.

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