x=145/245=52/70
x=
x+145/245=52/70 x=...
\(x+\frac{145}{245}=\frac{52}{70}\)
\(\Leftrightarrow x+\frac{29}{49}=\frac{26}{35}\)
\(x=\frac{26}{35}-\frac{29}{49}\)
\(x=\frac{182}{245}-\frac{145}{245}\)
\(x=\frac{37}{245}\)
x+145/245 =52/70
⇔x+29/49 =26/35
x=26/35 −294/9
x=182/245 −145/245
x=37/245
x+145/245=52/70
X + 145/245 = 52/70
X = 52/70 - 145/245
X = ??? MÁY TÍNH
X + 145/245 = 52/70
x =52/70 -145/245
x =........................
x + 145/ 245 = 52/70
\(x+\frac{145}{245}=\frac{52}{70}\)
\(x=\frac{52}{70}-\frac{145}{245}\)
\(x=\frac{37}{245}\)
\(x+\frac{145}{245}=\frac{52}{70}\)
\(x=\frac{52}{70}-\frac{145}{245}\)
\(x=\frac{37}{245}\)
Vậy \(x=\frac{37}{245}\)
x + 145\245 = 52\70
x+145/245=52/70
x=52/70-145/245
x=181/1764
1) Tính nhanh:
a, 125 x 3 + 125 x 125 x 6
b, ( 245 x 99 + 245 ) - ( 145 x 101 - 145 )
c, 154 x ( 28 + 52 ) - 45 x ( 26 + 54 )
a) 125.3+125.125.6
=125.3+125.750
=125.(3+750)
=125.753
=94125
b) (245.99+245)-(145.101-145)
=(245.(99+1))-(145.(101-1))
=245.100-145.100
=(245-145).100
=100.100
=10000
c) 154.(28+52)-45.(26+54)
=154.80-45.80
=(154-45).80
=109.80
=8720
a) 125x3+125+125x6
=125x(3+1+6)
=125x10
=1250
b) (245x99+245)-(145x101-145)
=(245x99+245)-(145x100)
=(245x100)-14500
=24500-14500
10000
c) 154x80-45x80
=80x(145-45)
=80x100
=8000
a, 125 x 3 + 125 x 125 x 6
=125 x 3 + 125 x 750
=125 x( 3+750)
=125 x753
=94125
b, ( 245 x 99 + 245 ) - ( 145 x 101 - 145 )
=[245 x ( 99+1 )] - [145 x ( 101-1 )]
=( 245 x 100 ) - ( 145 x 100 )
=24500 - 14500
=10 000
c, 154 x ( 28 + 52 ) - 45 x ( 26 + 54 )
=154 x 80 - 45 x 80
=(154-45)x80
=109 x80
=8720
x+145/245=52/70
x+145/245=52/70
x + 145/245 = 52/70
x = 52/70 - 145/245
x = 26/35 - 29/49
x = 37/245
k cho mk nha
\(\frac{x+145}{245}=\frac{52}{70}\)
Các bạn làm giúp mình nhé!
Ta có thể suy ra:
(x+145).70=245.52
(x+145).70=12740
x+145=12740:70
x+145=182
x+145=182-145
x =37
Vậy x là 37
Ta có : 245 : 70 = 3.5
và 52 x 3.5 = 182
số x là :
182 - 145 = 37
Đáp số : 37
k mình nhé
Chuẩn chuẩn chuẩn,mình là sky fan của sơn tùng nè
Tìm x , biết :
x + 145 52
245 = 70
x + 145 /245 = 52/70
245 : 70 = 3,5
52 x 3,5 182
x + 145=182
x = 182 - 145
x = 37