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QUESTION
Suppose that z varies jointly with x and y, and y = 3 when x = 2 and z = 30. What is z when x = 9 and y = 4? Use the step-by-step process you learned to solve this problem.
Suppose that z varies jointly with x and y, and y = 3 when x = 2 and z = 30. What is z when x = 9 and y = 4? Use the step-by-step process you learned to solve this problem.
