Q17: 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 ?
A. xy = 70 B. x + y = 70 C. 2x + y = 70 D. x + 2y = 70 E. 2x + 2y = 70 Answer: D 我认为是B,雇员年龄与雇用期之和至少为70,所以x+ y = 70,是不是理解错了? |