3) Tim so tu nhien lon nhat de thay vao y thi duoc:
5,13+y < 17,2 + 5,13
4) Lop 5A co 30 HS ,moi HS mua 4 quyen vo. Lop 5B co 32 HS, moi HS mua 3 quyen vo. Lop 5C mua so vo bang TBC so vo cua 2 lop da mua> Hoi lop 5C co bao nhieu quyen vo?
5) 1 phong hoc dang HHCN co CD 8m, CR 6m, CCao 4,5m. Tinh sien tich quet voi 4 buc tuong va tran nha biet rang sien tich cac cua la 14m2
Moi nguoi giai ca bai giup minh nhe!
Cam on moi nguoi!
an mua 12 quyen vo , moi quyen gia 3000 dong.Voi so tien do , neu mua loai vo gia 4000 dong mot quyen thi mua duoc bao nhieu quyen vo. Mong moi nguoi dua dap an ngay toi nay luon nhe!
4 kho chua 2160 tan chuyen tu kho a sang 3 kho con lai 1/4so thoc moi kho kho c chuyen cho 3 kho con lai dung bang so thoc moi kho kho d chuyen cho 3 kho con lai dung bang so thoc moi kho luc dau moi kho co bn tan th
co 36 chai moi chai chua 0,75l sua moi lit sua nang 1,04 kg moi vo chai nang 0,25 kg nhu vay ca 36 chai sua can nang bao nhieu kg
co 20 chai sua moi chai chua 0,75 lit sua moi lit sua can nang 1,04 kg moi vo chai can nang 0,25 kg hoi 20 chai sua can nang bao nhieu kg
mot chai dau chua 0,751 moi lit dau nang 0,6 kg va moi vo chai can nang 0,25kg .vay 32 chai dau nhu the can nang la .....kg
1 thung dau chua 25 lit dau hoa moi lit dau can nang 0,8kg biet vo thung can nang 5,28kg hoi thung chua dau do can nang bao nhieu kg
Co 2 thung dau,thung to chua 144 lit dau .thung nho chua dc 70 lit .Ca 2 thung dung nuoc nhung chua day.Neu do nuoc tu thung nho sang day thung to thi thung nho con 1 lit .Neu do tu thung to sang thung nho cho day thi nuoc trong thung con lai =75/100 luong nuoc luc dau .Hoi luc dau moi thung co b/n lit nuoc ?
giup mk voi ,giai ra nha