29,5 x ( x + 10,25 ) = 376,125 748 : ( x - 31,72) = 13,6
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a ) 36 * x + 12 ,67 = 489,67
36 * x = 489,67 - 12,67
36 * x = 477
x = 477 : 36 = 13,25
b ) x * 326,63 = 245,37
x = 245,37 : 326,63 = 0,7512169733....
c ) 29,5 * ( x + 10 ,25 ) = 376,125
x + 10 ,25 = 376,125 : 29,5
x + 10 ,25 = 12,75
x = 12,75 - 10,25 = 2,5
d ) 748 : (x - 31,72) = 13,6
x - 31,72 = 748 : 13,6
x - 31,72 = 55
x = 55 + 31,72 = 86,72
a, 36 * x + 12,67 = 489,67
36 * x = 489,67 - 12,67 = 477
x = 477 : 36 = 13,25
b, x * 326,63 = 245,37
x = 245,37 : 326,63 = 0,75
c, 29,5 * (x + 10,25) = 376,125
x + 10,25 = 376,125 : 29,5 = 12,75
x = 12,75 - 10,25 = 2,5
d, 748 : ( x - 31,72 ) = 13 ,6
( x - 31,72 ) = 748 : 13,6 = 55
x = 55 + 31,72 = 86,72
17,8 x X = 360,05 - 93,05
17,8 x X = 267
X = 267 : 17,8
X = 15
29,5 x ( X + 10,25 ) = 376,125
X + 10,25 = 376,125 : 29,5
X + 10,25 = 12,75
X = 12,75 - 10,25
X = 2,5
748 : ( X - 31,72 ) = 13,6
X - 31,72 = 748 : 13,6
X - 31,72 = 55
X = 55 + 31,72
X = 86 , 72
207 : 31,6 = 6,55063291139
17,8 . x = 360,05 - 93,05
17,8 . x = 267
x = 267 : 17,8
x = 15
29,5 . (x + 10,25) = 376,125
(x + 10,25) = 376,125 : 29,5
x + 10,25 = 12,75
x = 12,75 - 10,25
x = 2,5
748 : (x - 31,72) = 13,6
(x - 31,72) = 748 : 13,6
x - 31,72 = 55
x = 55 + 31,72
x = 86,72
207 : 31,6 = 6,55063291139
Học tốt!!!
x * 25,6 = 128
x = 128 / 25,6 = 5
17,8 * x = 360,05 - 93,05
17,8 * x = 267
x = 267/17,8 = 15
29,5 * ( x + 10,25 ) = 376,125
x + 10,25 = 376,125/29,5
x + 10,25 = 12,75
x = 12,75 - 10,25 = 2,5
748 / ( x - 31,72 ) = 13,6
x - 31,72 = 748 - 13,6
x - 31,72 = 55
x = 55 + 31,72 = 86,72
a) \(36x+12,67=489,67\)
\(\Rightarrow36x=489,67-12,67\)
\(\Rightarrow36x=477\)
\(\Rightarrow x=477:36\)
\(\Rightarrow x=13,25\)
Vậy \(x=13,25\)
b) \(x.326,63=247,37\)
\(\Rightarrow x=247,37:326,63\)
\(\Rightarrow x=0,7573401096\)
Vậy \(x=0,7573401096\)
c) \(29,5\left(x+10,25\right)=376,125\)
\(\Rightarrow x+10,25=376,125:29,5\)
\(\Rightarrow x+10,25=12,75\)
\(\Rightarrow x=12,75-10,25\)
\(\Rightarrow x=2,5\)
Vậy \(x=2,5\)
d) \(748:\left(x+31,72\right)=13,6\)
\(\Rightarrow x+31,72=748:13,6\)
\(\Rightarrow x+31,72=55\)
\(\Rightarrow x=55-31,72\)
\(\Rightarrow x=23,28\)
Vậy \(x=23,28\)
748: x-31,72=13,6
748: x=13,6+31,72
748: x=45,32
x=748:45,32=16,50485............
ta có:
748 : X - 31,72 = 13,6
748 : X = 13,6 + 31,72
748 : X = 45,32
X = 748 : 45,32
X = bao nhiêu tự tính
tk cho mk nha
748:(x-31,72)=13,6
x-31,72=748:13,6
x-31,72=55
x=55+31,72
x=86,72
vậy x=86,72
k mk nha
\(x\cdot1,5-5,61=6,45\)
\(x\cdot1,5=12,06\)
\(x=8,04\)
\(89:x+51,5:x=62,5\)
\(\left(89+51,5\right):x=62,5\)
\(140,5:x=62,5\)
\(x=2,248\)
29,5 x ( x + 10,25 ) = 376,125
=> x + 10,25 = 376,125 : 29,5
=> x + 10,25 = 12,75
=> x = 12,75 - 10,25
=> x = 2,5
748 : ( x - 31,72) = 13,6
=> x - 31,72 = 748 : 13,6
=> x - 31,72 = 55
=> x = 55 + 31,72
=> x = 86,72
\(29,5\left(x+10,25\right)=376,125\)
\(29,5x+302,375=376,125\)
\(29,5x=376,125-302,375\)
\(29,5x=y\)(y tự tìm)
\(x=\frac{y}{29,5}\)