4/4/9=2/3:[0,1.x]
0,1.x=2/3:4/4/9 [ chuyen ve]
0,1.x=3/20
x=3/20:0,1
x=3/2
4/4/9=2/3:[0,1.x]
0,1.x=2/3:4/4/9 [ chuyen ve]
0,1.x=3/20
x=3/20:0,1
x=3/2
tìm x
a , ( 1/3 .x) : 2/3 = 1/3/4 : 2/5
b , 4,5 : 0,3 = 2,25 : ( 0,1 .x)
c , 8 : ( 1/4 .x ) = 2: 0,02
d , 3 : 2/1/4 = 3/4 : ( 6 .x )
Tìm x,y,z:(áp dụng t/c của dãy tỉ số bằng nhau)
1/\(\dfrac{x}{0,3}\)=\(\dfrac{y}{0,2}\)=\(\dfrac{z}{0,1}\)và x-y=1
2/\(\dfrac{x}{2}\)=\(\dfrac{y}{3}\)=\(\dfrac{z}{-4}\)và 3x-2y=28
Tìm x trong các tỉ lệ thức sau:
a) \(\left(\frac{1}{3}.x\right):\frac{2}{3}=1\frac{3}{4}:\frac{2}{5}\)
b) 4,5 : 0,3 = 2,25 : (0,1 .x)
c) 8 : \(\left(\frac{1}{4}.x\right)=2:0,02\)
d) 3 : \(2\frac{1}{4}=\frac{3}{4}:\left(6.x\right)\)
Tính :
a) 0,1(2) + 0,1(3)
b) 0,7(3) + 0,3(7)
Tim x trong cac ti le thuc sau
a) \(\left(\frac{1}{3}.x\right):\frac{2}{3}=1\frac{3}{4}:\frac{2}{5}\)
b)\(4,5:0,3=2,25:\left(0,1.x\right)\)
c)\(8:\left(\frac{1}{4}.x\right)=2:0.02\)
d)\(3:2\frac{1}{4}=\frac{3}{4}:\left(6.x\right)\)
Tìm x trong các tỉ lệ thức sau:
a) \(\left(\frac{1}{3}.x\right):\frac{2}{3}=1\frac{3}{4}:\frac{2}{5}\)
b) 4,5 : 0,3 = 2,25 : ( 0,1 .x)
c) \(8:\left(\frac{1}{4}.x\right)=2 :0,02\)
d) \(3:2\frac{1}{4}=\frac{3}{4}:\left(6.x\right)\)
a)\(\left(\frac{1}{3}.x\right):\frac{2}{3}=1\frac{3}{4}:\frac{2}{5}\)
b)\(4,5:0,3=2,25:\left(0,1.x\right)\)
c)\(8:\left(\frac{1}{4}.x\right)=2:0,02\)
d) \(3:2\frac{1}{4}=\frac{2}{3}:\left(6.x\right)\)
1tim x
a .(\(\frac{1}{3}\). x ) :\(\frac{2}{3}\) =\(1\frac{3}{4}\):\(\frac{2}{5}\)
b. 4,5 :0,3 = 2,25 : (0,1 . x )
c. 8 : (\(\frac{1}{4}\). x ) = 2 :0,02
d. 3 :\(2\frac{1}{4}\)= \(\frac{3}{4}\) : (6x )
1) 4,5 : 0,3 = 2,25 : ( 0,1.x)