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28 tháng 4 2016

X : 0,25 + X:0,5-Xx4 =50,28

X x 4 + X x 2 - X x 4 = 50,28

X x 6 - X x 4 = 50,28

X x 2 = 50,28

X = 50,28 : 2 = 25,14

**** mik nha m.n !!!!

19 tháng 2 2019

Ui bài khó quá mk ko làm đc xl nhé.....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................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19 tháng 2 2019

 X:0,1+X:0,25+X:0,5+X×4

⇒ x :0,1+ x :0,25+ X:0,5+x:0,25=2018

⇒ X:(0,1+0,25+0,5+0,25)=2018

⇒ X:1,1=2018

⇒ x=2018 x1,1=2219,8

 Vậy X=2219,8

29 tháng 4 2016

41875

29 tháng 4 2016

\(X:0,25+X:0,5-X.4=50.25\)

\(X.4+X.2-X.4=50,25\)

\(X.\left(4+2-4\right)=50,25\)

\(X.2=50,25\)

\(X=50,25:2\)

\(X=25,125\)

15 tháng 12 2023

a: \(24,8:0,5+24,8\cdot3+24,8:0,2\)

\(=24,8\cdot2+24,8\cdot3+24,8\cdot5\)

\(=24,8\left(2+3+5\right)\)

\(=24,8\cdot10=248\)

b: \(19,5+19,5\cdot3+19,5:0,5+19,5:0,25\)

\(=19,5+19,5\cdot3+19,5\cdot2+19,5\cdot4\)

\(=19,5\left(1+3+2+4\right)\)

\(=19,5\cdot10=195\)

c: \(121,07\cdot4+121,07:0,25+121,07:0,5\)

\(=121,07\cdot4+121,07\cdot4+121,07\cdot2\)

\(=121,07\left(4+4+2\right)\)

\(=121,07\cdot10=1210,7\)

26 tháng 4 2022

a)9200

9200

6400

b)50

50

19,5

c)128

128

60

a)    92 : 0,01 = 9200          92 x 100 = 9200        64 : 0,01= 6400

b)    25 : 0,5 = 50           25 x 2 = 50           39 : 0,5 = 78
c)    32 : 0,25 = 128         32 x 4 = 128          15 : 0,25 = 60

29 tháng 5 2019

#)Giải :

a) \(\frac{2xX-4,36}{0,125}=\)0,25 x 42,9 - 11,7 x 0,25 + 0,25 x 0,8

\(\frac{2xX-4,36}{0,125}=\)0,25 x ( 42,9 - 11,7 + 0,8 )

\(\frac{2xX-4,36}{0,125}=\)0,25 x 32

\(\frac{2xX-4,36}{0,125}=8\)

\(2xX-4,36=8x0,125\)

\(2xX-4,36=1\)

\(2xX=1+4,36\)

\(2xX=5,36\)

\(X=5,36:2\)

\(X=2,68\)

              #~Will~be~Pens~#

29 tháng 5 2019

#)Next : 

b) 104,5 x X - 14,1 x X + 9,6 x X = 25

   ( 104,5 - 14,1 + 9,6 ) x X          = 25

   100 x X                                   = 25

            X                                   = 25 : 100

            X                                   = 0,25

                #~Will~be~Pens~#

12 tháng 3 2023

13,25*0,5+13,25*0,25+13,25*0,25

=13,25*(0,5+0,25+0,25)

=13,25*1

=13,25

12 tháng 3 2023

\(13,25\times0,5+13,25\times0,25+13,25\times0,25\)

\(=13,25\times\left(0,5+0,25+0,25\right)\)

\(=13,25\times1=13,25\)

a: =472x2+472x5+472x2=472x9=4248

b: =28,8+28,8-14,4=43,2

c: =2,4(6,2+3,8)=24

8 tháng 1 2022

còn một câu d nữa bạn cón thể giúp mk đc ko ạ