請幫我回答以下數學題目 - 工作
By Caroline
at 2015-05-02T00:00
at 2015-05-02T00:00
Table of Contents
1.若用12公克的奶粉加60c.c.的水泡一杯牛奶,再用150c.c.的水泡一杯相同濃度的牛奶,則要用___公克的奶粉?2.某校原來男女學生比為5:4開學時女生轉進了20人,已知全校無人轉出,若男生轉進___人時,則男女生人數比例維持不變。3.劉哥一次投籃練習,20球進12球,若他再投35球,要維持相同的命中率,則必須投進____球4.甲.乙兩班粉刷教室,甲班的油漆是用7罐白漆和4罐藍漆調成的,而乙班是用4罐白油漆和3罐籃漆調成的則:(1)那一班的藍色較深___班(2)若乙班
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工作
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By Una
at 2015-05-04T05:11
at 2015-05-04T05:11
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at 2015-05-05T16:36
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at 2015-05-03T17:34
at 2015-05-03T17:34
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