(500+115)x55+(600+15)x15+(700-85)x85+(900-285)x45
=615x 55+615x15+615x85+615x45
=615 x (55+15+85+45)
= 615 x 200
=123000
(500+115)x55+(600+15)x15+(700-85)x85+(900-285)x45
=615x 55+615x15+615x85+615x45
=615 x (55+15+85+45)
= 615 x 200
=123000
tinh bang cach thuan tien nhat
28 nhan 4720 cong 71 nhan 4720 cong 4720
cam on
tinh bang cach thuan tien nhat
246 nhan 62 cong 246 nhan 38
tinh bang cach thuan tien nhat ?
19/15 + 31/23 - 4/15 - 8/23 =.............
va bai , Mgot doi cong nhan sua 1 quang duong Ngay thu 1 sua dc 3/8 quang duong ngay thu 2 sua dc 1/3 quang duong.Hoi doi cong nhan can phai sua bao nhieu phan quang duong nua
ai giup minh tra loi thi minh se kb
tinh bang cach thuan tien
98 nhan 2012 cong 2012 cong 2012
mot nha may co so cong nhan nam bang 75/100 so cong nhan nu .Neu chuyen 56 so cong nhan nu di nha may khac thi so cong nhan nam bang 90 /100 so cong nhan nu con lai .Hoi luc dau co bao nhieu cong nhan
1,hieu cua 2 so la 13/18 . Neu them vao so tru 1/6 thi hieu 2 so la ?
2, tinh = cach thuan tien nhat :
19/15 + 31/23 - 4/15 - 8/23
3, 1 doi cong nhan sua 1 quang duong . Ngay thu nhat doi sua duoc 3/8 quang duong . Hoi doi cong nhan can phai sua ? phan quang duong ?
Ai giup mik dau tien voi tat ca cac bai toan tren thi se duoc chon va ket bn
Mot cong ty to chuc cho 570 cong nhan đi du lich bang xe oto moi xe cho đc nhieu nhat la 45 cong nhan hoi can it nhat bao nhieu xe nhu vay ??
tinh nhanh 125 nhan 3 cong 125 nhan 2 cong 125 nhan 3 cong 125 cong 1
mot cong nhan tinh toan thay rang moi thang ti so cua tien an va tien luong la 1/2 , ti so cua tien nha va tien luong la 1/6, ti so tien tieu vat va tien luong la 1/5 .Cuoi thang nguoi cong nhan con de danh duoc 200.000 donģ .hoi tien luong cua moi thang cua moi nguoi cong nhan do la bao nhieu