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The average (arithmetic mean) of w, x, y, and z is equal to the average of x, y, and z. Which of the following expressions represents w in terms of x, y, and z ?
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A.$$\frac{x+y+z}{4}$$
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B.$$\frac{x+y+z}{3}$$
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C.$$\frac{3(x+y+z)}{4}$$
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D.$$\frac{4(x+y+z)}{3}$$
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E.12(x+y+z)
B显示答案
