If 8m − n = p, then which of the following represents the average (arithmetic mean) of m, n, and p, in terms of m?\nOptions:\n(A) 2m −1\n(B) 3m\n(C) 6m\n(D) m/5\n(E) 6m/5 Stream of consciousness first, then make a decision:
User
8m - n = p\nAdd n to both sides:\n8m = n + p\nAdd m to both sides:\n9m = n + p + m\nNow, divide both sides by 3\n3m = (n + p + m)/3 = the average of n, p, and m
Thus, the answer is (B).
Assistant