1,1>x<1,2
x=?
tìm x
5596.x+\(\frac{1,1}{x}\)-5596.x=\(\frac{1,1}{x}\)
f(x,y)=x2+12xy+y2+3x+5y−1. Tính df(1,1).
Tính Nhanh:
8 x 1,1 x 3 x 0,125
8 x 1,1 x 3 x 0,125
= 0,125 x 8 x 3 x 1,1
= 1 x 3 x 1,1
= 3 x 1,1
= 3,3
\(8\times1,1\times3\times0,125\\ =\left(8\times0,125\right)\times\left(1,1\times3\right)\\ =1\times3,3\\ =3,3\)
100 - X = 3,7 x 2,4
4,1 x 2,1 - 3,96 :1,1
`100 - x = 3,7 xx 2,4`
`=> 100 - x =8,88`
`=>x=100-8,88`
`=>x=91,12`
`4,1 xx 2,1 - 3,96 :1,1`
`=8,61 -3,6`
`=5,01`
a:=>100-x=8,88
=>x=91,12
b: =8,61-3,6=5,01
\(100-x=3,7\times2,4\)
\(100-x=8,88\)
\(x=100-8,88\)
\(x=91,12\)
\(4,1\times2,1-3,96:1,1\)\(=8,61-3,6=5,01\)
1. Tìm \(x\)
a,\(\left(5876321-999999-3876000-322\right):x=5\)
b,\(\left(7593-1997\right).x+\dfrac{1,1}{x}-5696.x=\dfrac{1,1}{x}\)
a. \(\left(5876321-999999-3876000-322\right):x=5\)
\(\Rightarrow1000000:x=5\)
\(\Rightarrow5x=1000000\)
\(\Rightarrow x=\dfrac{1000000}{5}=200000\)
Vậy \(x=200000\)
b. \(\left(7593-1997\right)x+\dfrac{1,1}{x}-5696x=\dfrac{1,1}{x}\)
\(\Rightarrow5596x-5696x=\dfrac{1,1}{x}-\dfrac{1,1}{x}=0\)
\(\Rightarrow-100x=0\)
\(\Rightarrow x=0\)
Vậy \(x=0\)
1. Tìm \(x\)
a,\(\left(5876321-999999-3876000-322\right):x=5\)
b,\(\left(7593-1997\right).x+\dfrac{1,1}{x}-5696.x=\dfrac{1,1}{x}\)
\(a\) \(1000000:x=5\)
\(x=200000\)
\(b\) \(5596.x+1,1:x-5696.x=1,1:x\)
\(x=1\)
a) ( 5 876 321 - 999 999 - 3 876 000 - 322 ) : x = 5
=> 1 000 000 : x = 5
=> x = 1 000 000 : 5 = 200 000
Vậy ...
b) ( 7 593 - 1 997 ) . x +1,1/x - 5696x = 1,1/x
=> 7593x + 1,1/x - 5696x - 1,1/x = 0
=> ( 7593x - 5696x ) + (1,1/x-1,1/x) = 0
=> 1897x + 0 = 0
=> 1897x = 0
=> x = 0 : 1897 = 0
Vậy x = 0
a) \(\left(5876321-999999-3876000-322\right):x=5\)
\(1000000:x=5\)
\(x=200000\)
b) \(\left(7593-1997\right).x+\frac{1,1}{x}-5696.x=\frac{1,1}{x}\)
\(5596x+\frac{1,1}{x}-5696x-\frac{1,1}{x}=0\)
\(5596x-5696x=0\)
\(x\left(5596-5696\right)=0\)
\(-100x=0\)
\(x=0\)
k nha
Bài 5: Tính bằng cách thuận tiện nhất ; câu b tất cả là hỗn số
a) 2/3 : 3/5 x 5/7 : 2/3 + 2023 b) 1,1/2 x 1, 1/3 x 1, 1/8 x 1,1/15 x 1, 1/24 x 1, 1/35
a) 2/3 : 3/5 × 5/7 : 2/3
= 2/3 × 5/3 × 5/7 × 3/2
= 25/21
b) 1 1/2 × 1 1/3 × 1 1/18 × 1 1/15 × 1 1/24 × 1 1/35
= 3/2 × 4/3 × 19/18 × 16/15 × 25/24 × 36/35
= 2 × 152/35 × 15/14
= 304/35 × 15/14
= 152/7
X x 1,1 + X : 2,5 = 12
ai lam duoc minh cho 1 k nha!
X x1,1+X:2,5=12
Xx1,1+Xx(1/2,5)=12
Xx(1,1+1/2,5)=12
Xx1,5=12
X=12:1,5=8
Vậy x=8
1,2-(x-1,1)=-3(x+0,7)