Tìm x:
X-40%×X= 3,6
tìm x biết
x - 40% * x =3,6
Tìm x :
x : 17 = 40 - 3,6 15 - x : 27 = 7,2
\(x:17=40-3,6\)
\(x:17=36,4\)
\(x=36,4\times17\)
\(x=618,8\)
\(15-x:27=7,2\)
\(x:27=15-7,2\)
\(x:27=7,8\)
\(x=7,8\times27\)
\(x=210,6\)
a) =x : 17 = 36,4 b) 15 - x : 27 =7,2
x = 36,4 * 17 x : 27 = 7,8
x = 618,8 x = 7,8 * 27
x = 21,6
nho kminh nhe
x = 618,8
Tìm x biết
a, 1/3x + 1/4 = 7/12
b, x - 40℅x = - 3,6
c, | 2x + 3| = 5
a,1/3.x+1/4=7/12
1/3.x=7/12-1/4
1/3.x=1/3
x=1/3:1/3
x=1
b,x-40%.x=-3,6
x^2-4 phần 100=-3,6
x^2 =-3,6+40phaanf 100
x^2=-3,2
x=-1,6
X -40% x X=3,6
x - 40% x X = 3,6
\(x-40\%.x=3,6\)
<=>\(60\%.x=3,6\)
<=>\(x=3,6:60\%\)
<=>\(x=6\)
x-40%.x=3,6
\(x-\frac{2}{5}x=\frac{18}{5}\)
\(x\left(1-\frac{2}{5}\right)=\frac{18}{5}\)
\(\frac{3}{5}x=\frac{18}{5}\)
\(x=\frac{18}{5}:\frac{3}{5}\)
\(x=6\)
x-40%*x=3,6
X - 40% * X = 3,6
X - 40% x X = 3,6
X - \(\frac{40}{100}\) x X = 3,6
X x 1 - \(\frac{2}{5}\) x X = 3,6
X x ( 1 - \(\frac{2}{5}\) ) = 3,6
X x \(\frac{3}{5}=3,6\)
X = 3,6 : \(\frac{3}{5}\)
X = 3,6 x \(\frac{5}{3}\)
X = 6
100%x-40%x=3,6
=> 60%*x=3,6
=> x=3,6/60%=3,6*100/60=6
\(x-40\%\cdot x=3,6\)
\(=>x-\frac{40}{100}\cdot x=3,6\)
\(=>x\cdot1-\frac{2}{5}\cdot x=3,6\)
\(=>x\cdot\left(1-\frac{2}{5}\right)=\frac{36}{10}\)
\(=>x\cdot\frac{3}{5}=\frac{18}{5}\)
\(=>x=\frac{18}{5}:\frac{3}{5}\)
\(=>x=\frac{18}{5}\cdot\frac{5}{3}\)
\(=>x=\frac{18}{3}\)
\(=>x=6\)
Tìm x
a) x - 40% . x = 3,6
b) 30%. x + x = 52
c) 75% . x + \(\frac{3}{4}\) . x + x = 30
a, => x( 40% - 1 ) = 3,6
x( 0,4 - 1 ) = 3,6
-0,6x = -3,6
x = -3,6 : (-0,6)
x = 6
X- 40% = 3,6
30×X+X=52
x - 40% = 3,6
x - 0,4 = 3,6
x = 3,6 + 0,4
x = 4
Vậy x = 4
x-40%=3,6
\(\Rightarrow x-\frac{2}{5}=\frac{18}{5}\Rightarrow x=\)4
30xX+X=52
\(\Rightarrow31xX=52\Rightarrow x=\frac{52}{31}\)