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Đề thiếu ???

mình nhầm bằng 6 nhé

x:1+x:0.5+x:0.25+x:0.125 = ?????????????????????????????????

1 nha

HT

1 nhaaaaaaa

1 nha k mình nha

\(\Rightarrow x:\left(0,2+0,5+0,25+0,125\right)=5,7\)

\(\Rightarrow x:1,075=5,7\)

\(\Rightarrow x=5,7.1,075=6,1275\)

x:(0,2+0,5) + (0,25+0,125)=5,7

x:0,7 + 0,375 = 5,7

x:1,075 = 5,7

x=5,7 X 1,075

x=6,1275

\(\frac{x}{0.2}+\frac{x}{0.5}+\frac{x}{0.25}+\frac{x}{0.125}=5.7\)

\(\frac{0.625x}{0.125}+\frac{0.25x}{0.125}+\frac{0.5x}{0.125}+\frac{x}{0.125}=\frac{0.7125}{0.125}\)

\(0.625x+0.25x+0.5x+x=0.7125\)

\(x\left(0.625+0.25+0.5+1\right)=0.7125\)

\(x=0.3\)

X : 0,5 + X : 0,125 = 10,35

X x 2 + X x 8 = 10,35

X x (2 + 8)  = 10,35

X x 10 = 10,35

X = 10,35 : 10

X = 1,035

bang 1.035 nha

x:0,5+0,125=10,35

x:(0,5+0,125)=10,35

x:0,625=10,35

  x=10,35x0,625

  x=6,46875(đúng 100%)nhớ k cho mình nhé

\(=2,02\times8+2,02\times\dfrac{5}{2}+2,02\times0,5\\ =2,02\times\left(8+\dfrac{5}{2}+0,5\right)\\ =2,02\times\left(\dfrac{8.2+5+1}{2}\right)\\ =2,02\times\dfrac{22}{2}\\ =2,02\times11\\ =22,22\)

\(2,02:0,125+2,02:40\%+2,02\times0,5\\ =2,02\times8+2,02\times2,5+2,02\times0,5\\ =2,02\times\left(8+2,5+0,5\right)\\ =2,02\times11\\ =22,22\)

`2,02:0,125 + 2,02 : 40% + 2,02 xx 0,5`

`= 2,02 xx 8 + 2,02 xx 2,5 + 2,02 xx 0,5`

`=2,02 xx (8+2,5+0,5)`

`=2,02 xx 11`

`=22,22`

ko bt

Rối quá lần sau nhớ cách ra chứ nhìn như thế thì mù mắt :/

X + X : 0,25 + X : 0,5 + X : 0,125 = 0,45

X + X x 4 + X x 2 + X x 8 = 0,45

X x (4 + 2 + 8 + 1)=0,45

X x 15 =0,45

       X =0,45:15

       X=0,03