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Inez cashed a check for $1,490 at a bank and received only $50 bills, $20 bills, and $5 bills. If Inez received at least one $50 bill, at least one $20 bill, and at least one $5 bill, what is the least possible number of bills she could have received?
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· 相关考点
1.1.3 固定条件下求极值
1.1.3 固定条件下求极值
以上解析由 考满分老师提供。
