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16. 超商販售 50 元和 60 元兩種便當,廷廷買 10 個便當,共付了 530 元。設買 x 個 50 元便當,則根據題意可以列出下列哪一個方程式?(A)60x+50 ( 10-x )=530
問題詳情
16. 超商販售 50 元和 60 元兩種便當,廷廷買 10 個便當,共付了 530 元。設買 x 個 50 元便當,則根據題意可以列出下列哪一個方程式?
(A)60x+50 ( 10-x )=530
(B)50x+60 ( 10-x )=530
(C)60x+50 ( 10+x )=530
(D)50x+60 ( 10+x )=530
參考答案
答案:B
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15. 老師將一袋柳丁分給 x 位學生。若每位學生分得 6 個,則還剩下 14 個;若每人再多分 1 個,則不夠 2 個,則有多少位學生?(A)10 (B)12 (C)16 (D)18
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