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A certain train is traveling at a constant rate. If the train travels s miles in t hours, in how many hours will the train travel y miles?
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A.$$\frac{sy}{t}$$
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B.$$\frac{st}{y}$$
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C.$$\frac{ty}{s}$$
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D.$$\frac{s}{ty}$$
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E.$$\frac{s+y}{t}$$
C显示答案
