To be eligible for retirement benefits at the Omega Corporation, the sum of an employee`s age, in years, and the number of years of employment must be at least 70. If x, where x < 70, is a certain employee`s age when hired and y is the minimum number of years of employment required for the employee to be eligible for retirement benefits, which of the following equations represents the relationship between x and y ?
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Axy = 70
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Bx + y = 70
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C2x + y = 70
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Dx + 2y = 70
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E2x + 2y = 70
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正确答案: D