Tìm y: y - 15,7 - 2,18 = 36,5
tìm x biết : x - 15,7 - 2,18 = 36,5
x-15,7-2,18=36,5
=>x-(15,7+2,18)=36,5
=>x-17,88=36,5
=>x=36,5-17,88
=>x=18,62
Vậy x=18,62
x - 15,7 - 2,18 = 36,5
x - 15,7 = 36,5 + 2,18
x - 15,7 = 38,68
x = 38,68 + 15,7
x = 54,38
x-15,7-2,18=36,5
Tìm y, biết: y x 3-y : 3=36,5 x 4
Tìm y :
Y x 3,6 + Y : 0,25 =152( 22,54 - Y ) + 4,5 = 15,71.\(y\times3,6+y\div0,25=152\)
\(y\times3,6+y\div\frac{1}{4}=152\)
\(y\times3,6+y\times4=152\)
\(y\times\left(3,6+4\right)=152\)
\(y\times7,6=152\)
\(y=152\div7,6\)
\(y=20\)
2.\(\left(22,54-y\right)+4,5=15,7\)
\(22,54-y=15,7-4,5\)
\(22,54-y=11,2\)
\(y=22,54-11,2\)
\(y=11,34\)
3. 24,5 + 1,2 : 6 - 3,12 = 24,5 + 0,2 - 3,12 = 24,7 - 3,12 = 21,58
1. Y x 3,6 + Y :0,25=152
=> Y x3,6 + Y x4=152
=>Y x (3,6+4)=152 =>Y x 7,6 = 152
=>Y=152: 7,6=20
2. (22,54- Y) +4,5=15,7
=>22,54- Y=15,7 -4,5= 11,2
=> Y=22,54- 11.2= 11,34
3. 24,5+ 1,2: 6 -3,12= 24,5 +0,2 -3,12
=24,7-3,12=21,58
tìm y biết: y*3 -y:3=36,5*4
ai làm nhanh đúng mình tick cho
y*3 - \(\frac{y}{3}\)= 36,5 * 4
=> \(\frac{y\cdot3\cdot3}{3}-\frac{y}{3}=146\)
=> \(\frac{9y-y}{3}=146\)
=> \(\frac{8y}{3}=146\)
=> \(8y=146\cdot3=438\)
=> \(y=438:8=54,75\)
Tìm y biết
a) y + 2,3 = 15,7 - 2,4
b) 127 - (y - 15) = 86
c) 2 x (y - 12) + 18 = 164
a)
y + 2,3 = 15,7 - 2,4
y + 2,3 = 13,3
y = 13,3 - 2,3
y = 11
Vậy y = 11
b)
127 - (y - 15) = 86
y - 15 = 127 - 86
y - 15 = 41
y = 41 + 15
y = 56
Vậy y = 56
c)
2 x (y - 12) + 18 = 164
2 x ( y - 12 ) = 164 - 18
2 x ( y - 12 ) = 146
y - 12 = 146 : 2
y - 12 = 73
y = 73 + 12
y = 85
Vậy y = 85
a) y + 2,3 = 15,7 - 2,4
y+2,3=13,3
y=11
b) 127 - (y - 15) = 86
y-15=41
y=56
c) 2 .(y - 12) + 18 = 164
2 .(y - 12) =146
y-12=73
y=85
a) y + 2,3 = 15,7 - 2,4
y + 2,3 = 13,3
y = 13,3 - 2,3
y = 11
Vậy y = 11
b) 127 - (y - 15) = 86
y - 15 = 127 - 86
y - 15 = 41
y = 41 + 15
y = 56
Vậy y = 56
c) 2 x (y - 12) + 18 = 164
2 x ( y - 12) = 164 - 18
2 x ( y - 12 ) = 146
y - 12 = 146 : 2
y - 12 = 73
y = 73 + 12
y = 85
Vậy y = 85
Tìm y
a) 1/4 × y + y + 21,5=36,5
b) 3,5 × y + y × 2 + 40= 53
Gấp...gấp nhanh lên mik tick cho
a) 1 / 4 x y + y + 21,5 = 36,5
5 / 4 x y = 15
y = 12
b) 3,5 x y + y x 2 + 40 = 53
5,5 x y = 13
y = 26/11
â,Ta có:1/4xy+21,5=36,5
=36,5-21,5
=(tự tính nha:)
=chịu
tìm y ,biết :
a,y-5,14=[15,7+2,3]*2
làm nhanh mk tick nha
mk cần gấp nha
y-5,14=[15,7+2,3]*2
<=>y-15,4=18x2
<=>y-15,4=36
<=>y=51,4
Vậy y=51,4
y-5,14 = 18.2
y - 5,14 = 36
y= 36+5,14
y=41,14
a, y-5,14=[15,7+2,3] x 2
y-5,14=18 x 2
y-5,14=36
y=36+5,14
=> y= 41,14
Chúc bạn học tốt^^
1/4 x y + y + 17,5 = 36,5
1/4 x y + y +21,5 = 36,5
5/4 x y = 15
y = 12
\(\left(\dfrac{1}{4}+1\right)y+17,5=36,5\)
\(\dfrac{5}{4}y=19\)
\(y=15,2\)
\(\dfrac{5}{4}\) x y = 9
y =\(9:\dfrac{5}{4}=7,25\)