x-0.25.x=2013
(X*0.25+2012)*2013=(50+2012)*2013
(0,25X + 2012) x 2013 = (50 + 2012) x 2013
0,25X + 2012 = 50 + 2012
0,25X = 50
X = \(\frac{50}{0,25}=200\)
0,25 X x = 0,75+0.25
x : 1.25=1/4 - 0.25
0.25 * x = 0.75 + 0.25
0,25 X x = 0,75+0,25
0,25 X x = 1
x = 1:0,25
x = 4
x : 1.25 =1/4 - 0,25
x : 1,25 = 0,75
x = 0,75 x 1,25
x = 0,9375
0,25 X x = 0,75+0,25
0,25 X x = 1
x = 1:0,25
x = 4
0,25 x x = 0,75+0,25
0,25x x = 1
x = 1 : 0,25
x = 4
x : 1,25 =\(\frac{1}{4}\) - 0,25
x : 1,25 = \(\frac{1}{4}-\frac{25}{100}\)
x : 1,25 = \(\frac{1}{4}-\frac{1}{4}\)
x : 1,25 = 0
x = 0 x 1,25
x = 0
0,25 x x = 0,75+0,25
0,25x x = 1
x = 1 : 0,25
x = 4
a) \(0,25\times x=0,75+0,25\)
\(0,25\times x=1\)
\(x=1:0,25\)
\(x=4\)
Vậy \(x=4\)
b) \(x:1,25=\frac{1}{4}-0,25\)
\(x:1,25=0,25-0,25\)
\(x:1,25=0\)
\(x=0\times1,25\)
\(x=0\)
Vậy \(x=0\)
c) \(0,25\times x=0,75+0,25\)
\(0,25\times x=1\)
\(x=1:0,25\)
\(x=4\)
Vậy \(x=4\)
Chúc bạn học tốt !!!
x/0.25+x*0.25=3.75
( 21 x 12 - x - 0.75 ) : 0.25 = 100 : 0.25
( 21x 12 -x -0,75 ) : 0,25 =100: 0,25
(21 x12- x- 0,75) : 0,25= 400
21 x12 -x-0,75 = 400 x0,25
21 x12- x- 0,75= 100
252- x= 100 + 0,75
252-x= 100,75
x = 252- 100,75
x = 151,25
870 - x : 11 x 87 = 261 x : 0.25 x 2.3 = 6.9 2 x (y + y ) = 8.16 y x 1.5 + y + y x 7.5 = 59.8 m : 1/6 + m : 0.25 = 152 m : 1/3 + m : 0.25 = 1.4 giải dùm mình gấp nhé
870 - x : 11 x 87 = 261
x : 11 x 87 = 870 - 261
x : 11 x 87 = 609
x : 11 = 609 : 87
x : 11 = 7
x = 7 x 11
x = 77
x : 0.25 x 2.3 = 6.9
x : 0.25 = 6.9 : 2.3
x : 0.25 = 3
x = 3 x 0.25
x = 0.75
2 x (y + y) = 8.16
y + y = 8.16 : 2
y x 2 = 4.08
y = 4.08 : 2
y = 2.04
y x 1.5 + y + y x 7.5 = 59.8
y x (1.5 + 1 + 7.5) = 59.8
y x 10 = 59.8
y = 59.8 : 10
y = 5.98
m : 1/6 + m : 0.25 = 152
m : 1/6 + m : 1/4 = 152
m x 6 + m x 4 = 152
m x (6 + 4) = 152
m x 10 = 152
m = 152 : 10
m = 15.2
m : 1/3 + m : 0.25 = 1.4
m : 1/3 + m : 1/4 = 1.4
m x 3 + m x 4 = 1.4
m x (3 + 4) = 1.4
m x 7 = 1.4
m = 1.4 : 7
m = 0.2
Cho x > 0:
A = \(\dfrac{2+\sqrt{0.25}}{\sqrt{0.25}}\)
B = \(\dfrac{\sqrt{x}-1}{\sqrt{x}}+\dfrac{2\sqrt{x}+1}{x+\sqrt{x}}\)
Cho các số: 1/3 ;2014/2013 ;454545/111111 ;0.25 ;2013/2012 ; 3 và 1/2
Các bn rút gọn giùm mk :)))
tìm S
S : 0.25 + S x 0.25= 3.4
Lời giải:
$S:0,25+S\times 0,25=3,4$
$S\times 4+S\times 0,25=3,4$
$S\times (4+0,25)=3,4$
$S\times 4,25=3,4$
$S=3,4:4,25$
S=0,8$
tìm x:
x : 0.25 + x : 0,125 + x : 0,5 + x = 0,90
x:1/4+x:1/8+x:1/2+1=0,90
x*4+x*8+x*2+x*1=0,90
x*(4+8+2+1)=0,90
x*15=0,90
x=0,06