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It takes 1 pound of flour to make y cakes. The price of flour is w dollars for x pounds. In terms of w, x and y, what is the dollar cost of the flour required to make 1 cake?
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A.$$\frac{xy}{w}$$
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B.$$\frac{y}{wx}$$
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C.$$\frac{w}{xy}$$
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D.$$\frac{wx}{y}$$
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E.wxy
C显示答案
