tinh gia tri lon nhat va be nhat cua bieu thuc a-(b+c la nhung so co ba chu so khac nhau )

gui cho minh dap an nhanh nha minh can lam va cac lam nu nha

Chon dap an dung cho phan so bang 4/3 la :A.24/16. B.21/15. C.75/35  D56/42

Mot hinh chu nhat co chu vi la 500m, chieu rong bang 2\3 chieu dai. Tim chieu dai chieu rong hinh chu nhat do?

Dap an kem theo loi giai nua nhe!

chon dap an dung 

mot hinh thoi co do dai duong cheo lon la 3/4 m, do dai duong cheo be bang mot nua do dai duong cheo lon.Dien tich hinh thoi la:

a.3/6m2      b. 9/64 m2    c. 9/32 m2     d. 9/16 m2

Tong cua hai so la so chan lon nhat co bon chu so .Hieu cua hai so la so tron chuc lon nhat co 3 chu so Tim hai so do 

Ban An phai tim tat ca cac so co 3 chu so lon hon 500 ma tong cac chu so cua moi so do deu = 12, dong thoi chu so hang don vi = trung cong cua chu so hang tram va hang chuc. Hoi ban An tim duoc nhieu nhat may so thoa man yeu cau?

ban an phai tim tat ca cac so co 3 chu so lon hon 500 ma tong cac chu so cua moi so do deu bang 12 dong thoi chu so hang don vi bang trung binh cong cua chu so hang tram va hyang chuc hoi ban an tim duoc nhieu nhat bao nhieu so thoa man yeu cau

tim hieu cua so be nhat co sau chu so va so tron chuc nho nhat

mot cua hang co 5 ro cam va chanh  (moi ro dung mot loai qua).sau khi ban mot ro nguoi ban hang thay rang  so chanh gap 4 lan so cam .hoi luc dau co bao nhieu qua moi loai?( biet so qua moi ro lan luot la 104 qua ,105 qua, 132 qua,136 qua. 148 qua).

ai ra dap an dung trong ngay hom se duoc mot like cua minh.nhung nho giai can than ra day.

Thu hai minh se dua len mot cau neu co thoi gian .