Các câu hỏi tương tự
cho 3 phan so , biet rang trung binh cong cua chung bang 7/6 . neu tang phan so thu nhat len 2 lan va giu nguyen 2 phan so con lai thi trung binh cong cua chung bang 41/30.neu tang phan so thu hai len hai lan va giu nguyen hai phan so con lai thi trung binh cong cua chung bang 13/9 . tim 3 phan so da cho.
5 nguoi lam nhanh nhat minh se tick cho
nhanh len nha
1 .trung binh cong cua hai phan so la 5/12 .neu tang phan so thu nhat gap 2 lan thi trung binh cong cua chung bang 2/3 .tim hai phan so do .
2.trung binh cong cua ba phan so la 13 /36 .neu tang phan so thu nhat gap 2 lan thi trung binh cong cua chung bang 19/36 ,cho biet phan so thu hai lon hon phan so thu ba 1 /12. tim ba phan so do .
1. Tim trung binh cong cua tat ca cac so tu nhien co 4 chu so khac nhau duoc viet boi bon chu so 0;3;5;7.Trung binh cong cua tat ca cac so do la?2 .Tong cua 3 so bang 5,2. So thu nhat bang 2/3 so thu ba va so thu hai bang 50% so thu ba. Tim so thu hai?3. Tim mot phan so co mau so bang 25 , biet rang neu cong tu so voi 34 va nhan mau so voi 3 thi duoc phan so moi bang phan so da cho. Tim phan so do?4. Tim mot phan so biet rang neu cong them 4 vao tu so va giu nguyen mau so thi ta duoc phan so moi...
Đọc tiếp
1. Tim trung binh cong cua tat ca cac so tu nhien co 4 chu so khac nhau duoc viet boi bon chu so 0;3;5;7.Trung binh cong cua tat ca cac so do la?
2 .Tong cua 3 so bang 5,2. So thu nhat bang 2/3 so thu ba va so thu hai bang 50% so thu ba. Tim so thu hai?
3. Tim mot phan so co mau so bang 25 , biet rang neu cong tu so voi 34 va nhan mau so voi 3 thi duoc phan so moi bang phan so da cho. Tim phan so do?
4. Tim mot phan so biet rang neu cong them 4 vao tu so va giu nguyen mau so thi ta duoc phan so moi bang 1, con neu giu nguyen tu so va cong them 3 thi ta duoc phan so moi bang 1/2 .Tim phan so do?
5. Hay cho biet co tat ca bao nhieu so co 3 chu so ma tong co chu so cua moi so bang 4 . co tat ca bao nhieu so thoa man?
trung binh cong cua so thu nhat va so thu 2 la 8.5 trung binh cong co so thu 2 va so thu 3 la 8.1 trung binh cong cua so thu nhat va so thu 3 la 7.35 tim so lon nhat , cac ban nho tim gium minh nhe!!
1.viet so tu nhien nho nhat co tong cac chu so bang 38?2.mot phep chia hai so tu nhien co thuong la 6 va so du la 33.tim so bi chia,so chia,biet rang tong cua so bi chia,so chia,thuong va so du bang 695.3.trung binh cong cua 3 so le lien tiep bang 299.tim so lon nhat trong 3 so do?4.cho phan so a/b.rut gon so phan so a/b ta duoc phan so 5/7.neu them 71 don vi vao tu so va giu nguyen mau so,ta duoc phan so co gia tri bang 18/11.tim phan so a/b?5.tim y biet:a(2/11*13+2/13*5+2/15*17+2/17*19+2/19*21...
Đọc tiếp
1.viet so tu nhien nho nhat co tong cac chu so bang 38?
2.mot phep chia hai so tu nhien co thuong la 6 va so du la 33.tim so bi chia,so chia,biet rang tong cua so bi chia,so chia,thuong va so du bang 695.
3.trung binh cong cua 3 so le lien tiep bang 299.tim so lon nhat trong 3 so do?
4.cho phan so a/b.rut gon so phan so a/b ta duoc phan so 5/7.neu them 71 don vi vao tu so va giu nguyen mau so,ta duoc phan so co gia tri bang 18/11.tim phan so a/b?
5.tim y biet:a=(2/11*13+2/13*5+2/15*17+2/17*19+2/19*21)*462-y=19
cac ban giai chi tiet gium minh nhe,ban nao giai duoc minh cho ***** lun
Tong cua 3 so thap phan la 6,66 so hang thu nhat va so hang thu 3 co ti so la 3 va co trung binh cong bang so thu hai tim ba so do
trung binh cong cua 2 phan so bang 7/8 neu tang phan so thu 1 len 3 lan thi trung binh cong cua chung bang 17/8 tim phan so thu 2
ghi ro cach giai
trung binh cong cua tu so va mau so cua mot phan so la 16 neu gap tu so len 3 lan thi phan so do bang 1 tim phan so da cho
mieng dat hinh thang cua ong nam co trung binh cong cua hai day la 235m va chieu cao bang 4 phan 5 trung binh cong cua hai day. ong nam su dung 0,75% dien tich mieng dat de dao ao nuoi ca va phan dat con lai de trong trot. tinh dien tich phan dat de trong trot.