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Tim phan so a/b biet a/b bang trung binh cong cua 3 phan so 7/18;11/18;va a/b
Tim phan so a/b>1,biet rang khi lay tu so cong voi 2 va mau so nhan voi 2 thi duoc phan so moi bang phan so a/b.
tim so thap phan lon hon 6 va be hon 7 biet rang so do co hai cho so khac o phan thap phan va tong cac chu so o phan thap phan bang chu so o phan nguyen
tim so thap phan A biet rằng neu chuyen dau phay cua no sang ben trai mot chu so ta duoc so thap phan B va A-B=17,973
1.Tim 2 so thap phan biet thuong cua chung bang hieu cua chung va bang 0,75
2.Tim 2 so thap phan biet thuong cua chung bang hieu cua chung va bang 1,25
3.Tim 2 so thap phan biet thuong cua chung bang tong cua chung va bang 1,5
biet 40 phan tram so A bang 50 phan tram so B va biet A -B= 19,5. tim so A.
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
1. tinh s hinh tron co dien tich 1,2 dm...cm22.309/4022014-a/512.tra loi a...3. tim 1 so tu nhien biet neu xoa chu so hang don vi cua no di ta dc so moi kem so phai tim 1814 don vi?4.so tu thap phan be nhat co cac chu so khac nhau ma tich cac chu so cua so do 64?5. 2 kho a va b chua tat ca 325 tan thoc. biet sau khi lay ra 30 tan o kho a va 25 tan o kho b thi so thoc con lai o kho a bang 125% so thoc con lai o kho b. hoi ban dau kho a chua bao nhieu tan thoc?
Đọc tiếp
1. tinh s hinh tron co dien tich 1,2 dm...cm2
2.309/402=2014-a/512.tra loi a=...
3. tim 1 so tu nhien biet neu xoa chu so hang don vi cua no di ta dc so moi kem so phai tim 1814 don vi?
4.so tu thap phan be nhat co cac chu so khac nhau ma tich cac chu so cua so do = 64?
5. 2 kho a va b chua tat ca 325 tan thoc. biet sau khi lay ra 30 tan o kho a va 25 tan o kho b thi so thoc con lai o kho a bang 125% so thoc con lai o kho b. hoi ban dau kho a chua bao nhieu tan thoc?
Cho so thap phan a neu chuyen dau phay cua so thap phan a sang ben trai 2 chu so thi dc b neu chuyen dau phay cua so thap phan a sang ben phai 1 chu so thi dc b tim so thap phan a biet a+b+c= 2373,756