SOLUTION: If a + b = 7(c + d), which of the following is the average (arithmetic mean) of a, b, c, and d?
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Question 367826: If a + b = 7(c + d), which of the following is the average (arithmetic mean) of a, b, c, and d?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
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