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DIRECT VARIATION

PROBLEM:

• If z is directly proportional to x and z = 12 when x = 3, find the value of z when x = 18. Show your solution.

(I changed it because it seems like your question is kinda tricky and complicated.)

ANSWER:

Identify the Constant of Variation (k):

Constant Of Variation: 4

Find the value of z when x = 18:

Thus, the value of z when x = 18 is 72.