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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
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 !!!!
LB
0
7 tháng 2 2016
câu 1:
x:4=10.8-7.2
x:4=3.6
x=3.6x4=14.4
câu 2:
X x 4=10.8+7.2
X x 4=18
X =18:4
X=4.5
LT
29 tháng 4 2016
\(X:0,25+X:0,5-X.4=50.25\)
\(X.4+X.2-X.4=50,25\)
\(X.\left(4+2-4\right)=50,25\)
\(X.2=50,25\)
\(X=50,25:2\)
\(X=25,125\)
DD
25 tháng 11 2017
a, X x 3 x 5 = 2,7
X x 15 = 2,7
X = 2,7 : 15
X = 0,18
b, 1,2 : X x 4 = 20
X x 4 = 1,2 : 20
X x 4 = 0,06
X = 0,06 : 4
X = 0,015
HT
25 tháng 11 2017
dang quang thanh k tớ nhá
a) \(x.3.5=2,7\)
\(15x=2,7\)
\(x=0,18\)
vậy \(x=0,18\)
b) \(1,2:x.4=20\)
\(1,2:x=5\)
\(x=1,2:5\)
\(x=0,24\)
vậy \(x=0,24\)
5 tháng 4 2020
35,6 + (x . 4) = 100
x . 4 = 100 - 35,6
x . 4 = 64,4
x = 64,4 : 4
x =16.1
Vây x =16,1
-Tk nha-
LH
3
30 tháng 5 2020
\(\frac{379-x}{12}=21,7\) Đ/S : 118,6
=......ban tu lam