A class collects ＄50 to buy flowers for a classmate who is in the hospital. Roses cost ＄3 each， and carnations cost ＄2 each. No other flowers are to be used. How many different bouquets could be purchased for exactly ＄50？_______
相关试题
如图所示，两块完全相同的含30°角的直角三角板叠放在一起，∠DAB =30°，有以下四个结论：①AF⊥BC；②△ADG≌△ACF；③O为BC的中点；④AG︰DE=
，其中正确结论的序号是 ．
的解集是
，那么
的值等于 ．
= ．
满足：
，那么
的值等于_________．推荐套卷
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