191+X+9=43x5 Xx25x4=125x8 Xx5+Xx15-Xx10=1500
nhanh nha
Tìm x.y biết
Xx10+Yx5=9,5
Xx5-Yx2=1,6
x:0,5+Xx10=24
X : 0,5 + X x 10 = 24
X x 2 + X x 10 = 24
x = 24 : ( 2 +10 )
x = 2
x : 0,5 + x × 10 = 24
x : 1/2 + x × 10 = 24
x × 2 + x × 10 = 24
x × 12 = 24
x = 24 : 12
x = 2
Vậy x = 2
x : 0,5 + x × 10 = 24
x : 1/2 + x × 10 = 24
x × 2 + x × 10 = 24
x × 12 = 24
x = 24 : 12
x = 2
Vậy x = 2
tìm X
Xx10=100
x=10
neu thich thi tich cho em nhe
cam on nhieu
(X+4/21):3=2
(X+2/9):7/11=11/7
Xx9+Xx5=70
+) \(x=\dfrac{122}{21}\)
+) \(x=\dfrac{7}{9}\)
+) \(x=5\)
Tìm giá trị M.Biết M = (2+4+6+...+48+50)X(125x8-1000)
M = (2 + 4 + 6 + ... + 48 + 50) × (125 × 8 - 1000)
= (2 + 4 + 6 + ... + 48 + 50) × (1000 - 1000)
= (2 + 4 + 6 + ... + 48 + 50) × 0
= 0
giúp mk nha!!!! X: 0,25+Xx5=2,7 X:0,25-X:0,5=1,8
\(0,25+x\times5=2,7\)
\(x\times5=2,7-0,25\)
\(x\times5=2,45\)
\(x=2,45:5\)
\(x=0,49\)
0,25+Xx5=2,7
Xx5=2,7-0,25
Xx5=2,4
X=2,45:5
X=0,49
1. tìm x
x=10=20
xx15=45
2. tính nhanh
38x16+38x84
Xx10=50+20
X =?
X =?
X =?
\(x\)x 10 = 50 + 20
\(x\)x 10 = 70
\(x\) = 70 : 10
\(x\) = 7
X x 10 = 50 + 20
X x 10 = 70
x = 70 : 10
x = 7
125x8=?