X÷4-X÷4-24,76=19,48÷4
X x 4- X : 4 - 24,76 =190,48 . tìm x
x . 4 - x : 4 - 24,76 = 190.48 : 2
Tìm x biết x . 4 - x : 4 - 24,76 = 190.48 : 2
Tìm x biết x . 4 - x : 4 - 24,76 = 190,48 : 2
x .4 - x : 4 - 24,76 = 190,48 : 2
x . 4 - x . 1/4 - 24,76 = 95,24
x .4 -x . 1/4 = 95,24 + 24,76
x .4 - x . 1/4 = 120
x . [ 4-1/4]=120
x . 15/4 = 120
x = 120 : 15/4
x = 32
X.4-x:4-24,76=190,48:2
X.4-x.1/4-24,76=95,24
X.4-x.1/4=95,24+24,76
X.4-x.1/4=120
X.(4-1/4)=120
X.15/4=120
X=120:15/14
X=32
Xx4-X:4-24,76=190,48:2
X+18,7=50,5:2,5
X-2,751=6,3:2,4
Xx4-x:4-24,76=190,48:2
a)X + 18,7= 50, 5 :2,5
X +\(\frac{187}{10}\)=\(\frac{505}{10}\):\(\frac{25}{10}\)
X + \(\frac{187}{10}\)=\(\frac{101}{2}:\frac{5}{2}\)
\(X+\frac{187}{10}=\frac{101}{2}\times\frac{2}{5}\)
\(X+\frac{187}{10}=\frac{101}{5}\)
\(X=\frac{101}{5}-\frac{187}{10}\)
\(X=\frac{202}{10}-\frac{187}{10}\)
\(X=\frac{15}{10}\)
\(X=\frac{3}{2}\)
b)\(X=6,3:2,4+2,751\)
X =\(\frac{672}{125}\)
x + 18,7 = 50,5 : 2,5
x + 81,7 = 20,2
x = 20,2 - 18,7
x = 1,5
x - 2,751 = 6,3 : 2,4
x - 2,751 = 2,625
x = 2,625 + 2,751
x = 5,376
tìm Y:
a) Y x 4 - Y : 4 - 24,76=190,48:2
b) (Y+1) + (2xY+2) + (3xY+3) +....+(98xY+98) + (99xY+100)=7501
a) Y x 4 - Y : 4 - 24,76 = 190,48 : 2
Y x 4 - Y x 1/4 - 24,76 = 95,24
Y x (4 - 1/4) = 95,24 + 24,76
Y x 15/4 = 120
Y = 120 : 15/4 = 32
a, X : 8 + X x 8 - 56,78 = 69,11 x 2
b, X + X : 5 x ,5 + X : 2 x 9= 315
c, X x 4 - X : 4 - 24,76 = 190,48 : 2
Giups em với m.n, mai em đi học mâts ròi
Bài 4. Đặt tính rồi tính: (2 điểm)
a.19,48 + 26,15 b.62,05 - 20,18 c. 4,06 × 3,4 d. 91,08 :3,6