ban dang o tang 9 tu tang nha ban den tang khac co 36 bac hoi tu tang 1den tang 9 co bao nhieu bac
co mot khach sa nguoi khach no di thang may den tang 34 roi lai di bo den tang 42 hoi tai sao ko di thang may tiep
di tu tang 1den tang 4 mat 12 phut .Hoi di tu tang 1 den tang 6 mat bao nhieu phut
co 1 ba di ra sieu thi tang thu nhat ba gap 1 cai ban tron , tang thu 2 ba di len di xuong di len di xuong , tang thu 3 ba lai gap 1 cai ban tron .Hoi ba ay di mua cai gi trong sieu thi
1.Ban phu huynh lop 6A mua cap tang cho hoc sinh gioi va kha.Moi hoc sinh gioi duoc tang cap 200000 dong;Moi hoc sinh kha duoc tang cap 150000 dong.Tong so tien la 3200000 dong,phai tang 18 ban.Hoi co bao nhieu hoc sinh gioi?
2.Ung ho tre em vung cao.Truong tieu hoc XI HA NUC huy dong duoc 45 trieu dong,can mua 1000 doi dep,co L la 60000 dong/doi;co M la 40000 dong/doi.Hoi truong mua duoc bao nhieu doi co L va bao nhieu doi co M ?
3.Quang mang 200000 dong ra mua banh Cu do,banh loai 1 co gia la 15000 dong/goi;banh loai 2 co gia la 20000 dong/goi.Quang can mua 12 goi tat ca.Hoi Quang mua bao nhieu goi loai 1 va bao nhieu goi loai 2 ?
nhanh nha minh tick cho!
mot manh vuon hinh thang co day be 36m,day lon 52m.neu tang them 4m thi dien tich tang them 60m2.tinh dien tich hinh thang ban dau?
mot truong tieu hoc co manh dat hcn.neu tang chieu dai 4m,chieu rong tang them 5m thi dien tich tang them 225m vuong.neu chi co chieu rong tang them 5m thi dien tich tang them150m vuong. tinh dien tich hinh chu nhat ban dau
Mot hinh chu nhat co chieu dai gap 3 lan chieu rong. Neu giam chieu dai di 3 cm va tang chieu rong 3 cm thi luc do dien tich tang 93 xang-ti-met vuong. Tinh dien tich hinh chu nhat ban dau
co moy anh chang lam viec trong mot toa nha 50 tang , nhung anh ta lai chi di cau thang may len den tung 35 roi doan con lai anh ta di thang bo . tai sao anh ta lai lam nhu vay