题目内容
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纠错
题目材料：
If the average age of production, administration, and finance is x, y, and z in site 2, what is the average of all employees in site 2?
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Ax+y+z
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B0.3x+0.3y+0.4z
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C$$\frac{(0.3x+0.3y+0.4z)}{3}$$
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D$$\frac{(x+y+z)}{3}$$
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E(0.3x+0.3y+0.4z)*1530
B显示答案
