阿慧在店內購買兩種蛋糕當伴手禮圖為蛋糕的價目表已知阿慧購買10盒蛋糕花費的金額不超過2500元若他將蛋糕分給75位同事每人至少能拿到一個

4F

vivahome.jo (2021/03/18)

不等式與題意的數學式:

設350元的有x盒(12個), 200元的有10-x盒(6個)

總金額不多於2500元, 即350x+200(10-x)< 2500,

x< 10/3, x最多3盒

總個數最少75個, 即12x+6(10-x)>75,

x>5/2, x最少3盒

故總金額=350(3)+200(7)=2450

檢舉

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