The modes of a set of 9 numbers are x, y, and z, and the average (arithmetic

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The modes of a set of 9 numbers are x, y, and z, and the average (arithmetic mean) of the 9 numbers is 20. Three of the 9 numbers are 2x + 5, 2y, and 2z − 3. What is the value of 4(x + y + z)?

A. 178

B. 179

C. 180

D. 181

E. 182

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A There are 9 numbers three of which are 2x 5 2y and 2z 3 The modes are x y and z There ...View the full answer

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