\(3,\left(740\right)=3+\frac{7400}{9990}=3+\frac{20}{27}=\frac{101}{27}\)
3,(740) = 3 + 0,(740)
= 3 +\(\frac{740}{999}\)
= 3+ \(\frac{20}{27}\)
= \(\frac{101}{27}\)
\(3,\left(740\right)=3+\frac{7400}{9990}=3+\frac{20}{27}=\frac{101}{27}\)
3,(740) = 3 + 0,(740)
= 3 +\(\frac{740}{999}\)
= 3+ \(\frac{20}{27}\)
= \(\frac{101}{27}\)
neu 1/2 cua a bang 2b thi 9/8a=kb . Vay k bang bao nhieu ?
(x+y)-(x-y)
bang bao nhieu vay cac ban giup to voi
a) (-2,5*0,48*0,4)+[0,125*3.52*(-8)] (Tinh nhanh)
bang bao nhieu vay
ai tra loi dung nhanh nhat minh tich cho
Bai 1: Biet rang 1 luong vang bang 37.5g vang . Hoi 1 kg vang bang bao nhieu luong vang ( Lam tron den chu so thap phan thu nhat)
Bai 2 : Tam giac ABC co goc B=goc C . C/m AB=AC ( Giai bang nhieu cach)
Bai 3: Mot chu be 7 tuoi cao 85cm, 14 tuoi cao 170cm. Hoi nam 21 tuoi , chu be cao bao nhieu ?
Bai 4: Tren bai bien ,3 co be nhat duoc 140 vien soi va dinh chia theo ti le tuoi . Cu Mai duoc chia 4 vien thi Lan duoc 3 vien va khi Mai duoc chia 6 vien thi Hoa duoc 7 vien. Vay moi co be dc bn vien ?
Cho x thỏa mản |2x+2015|-3= bao nhieu vay may ban
3.(1) doi ra phan so bang bao nhieu
3.(45) doi ra phan so bang bao nhieu
trong mot phep tru co 4 chu so tru di 371 . Bạn an da viet nham so tru :so 1 thanh so 4 va 7 thanh 1.Vì vay ban tinh duoc hieu la5555.
a, viet nham nhu vay thi so tru giam di bao nhieu
b,dap so dungva so bi tru la bao nhieu
2+2^2+2^3+•••••••+2^2014=2x hoi x bang bao nhieu