The modes of a set of 9 numbers are x, y, and z, and the average (arithmetic
Question:
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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Related Book For 
McGraw Hills Conquering SAT Math
ISBN: 9780071493413
2nd Edition
Authors: Robert Postman, Ryan Postman
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