cac ban co the giai thich tai sao nam 1671 lai bang 17 the ki
Cac ban thich cho minh biet tai sao 1794 bang 19 the ki
CAC BAN DUNG LAI DI CO DUOC KHONG ? SAO CAC BAN LAI TU HOI TU TRA LOI CHI VI MUON KIEM LIKE CO CHU . SAO CAC CAU PHAI LAM VAY ? CAC CAU LAM NHU VAY THAT BI OI . MINH KHONG MUON XUC PHAM DEN DANH DU CUA CAC CAU NHUNG CAC CAU LAM NHU VAY LA KHONG DUNG . CAC CAU MA DUNG NHUNG TRO BI OI NHU VAY THI NHUGN NGUOI TRA LOI CHAN CHINH CAC CAU HOI SE NHU THE NAO ? CAC CAU HAY DUNG LAI DI . MINH KHONG MUON GAY ROI TREN DIEN DAN VA MINH CUNG BIET CCAC BAN RAT MUON LIKE NHUNG CAC CAU LAM VAY LA LAM VIEC KHONG TOT MINH PHAI NGAN CHUYEN NAY LAI . MONG CAC CAU HIEU
cho a la so tu nhien co 3 chu so .viet cac chu so cua a theo thu tu nguoc lai ta duoc so tu nhien b hoi hieu hai so do cho chia het cho 3 khong? tai sao?
co the tim duoc hai so tu nhien sao cho hieu cua chung nhan voi 18 duoc 1989 khong
Dau nam hoc , so doi vien truong em bang 1/3 so hoc sinh con lai cua truong . Den cuoi hoc ki 1 truong ket nap them 210 hoc sinh vao doi nen so hoc sinh con lai cua truong bang 2/3 so doi vien cua trong . Hoi den cuoi hoc ki 1 so doi vien cua truong la bao nhieu em biet so hoc sinh cua truong khong thay doi ?
ban ak cho minh hoi la tai sao 7,2 x 1000 lai bang 7200 vay ma ko bang 7200,0 cho minh hoi voi
1.Tai mot truong hoc dau nam so hoc sinh nam va so hoc sinh nu5 hoc sinh nam bang nhau Trong hoc ki 1nha truong nhan them15 hoc sinh nu va nam nen so nu chien 51% tongso hoc sinh.hoi dau nam truong do co bao nhieu hoc sinh nam
2.Hieu hai so bang 9,5.Tim so lon biet rang 30%so lon thi bang 40% so be
3. Cho hinh vuong giam cach hinh vuong 10% thi dien tich hinh vuong giam di 118,75 cm2.Tinh dien tich hinh vuong da cho
1.Tim 2 so biet hieu cua chung bang 19,98 va thuong cua chung bang 19.
2.Mot hinh chu nhat co chieu dai 85,5 cm,chieu rong bang 5/9 chieu dai.Tinh dien tichhinh chu nhat do.
3.Mot cua hang co 20,43kg mi chinh duoc dong vao 45 goi can nang bang nhau.Cua hang da ban 18 goi.Hoi cua hang con lai bao nhieu ki-lo-gam mi chinh.
