Tìm y:
a)y–(4,56 + 6,7) = 7,89
b) 45,32 –(y+ 12,34) = 17,65
45,32-(y +12,34) =17,65
y+12,34=45,32-17,65
y+12,34=27,67
y=27,67-12,34
y=15,33
Tìm y
a/ y + 23,93 = 41,54 – 12,37 b/ 72,75 – (y + 13,26) = 34,38 c/ y – 13,5 = 19,3 + 8,57 | d/ y + 15,3 = 57,38 – 24,4 e/ y – (4,56 + 6,7) = 7,89 g/ 45,32 – (y + 12,34) = 17,65 |
a)y+23,93=41,54-12,37 b)72,75-(y+13,26)=34,38 c)y-13,5=19,3+8,57
y+23,93=53,91 (y+13,26)=72,75-34,38 y-13,5=27,87
y =53,91-23,93 (y+13,26)=29,98 y =27,87+13,5
y =29,98 y =29,98-13,26 y =41,37
y =16,72
d)y+15,3=57,38-24,4 e)y-(4,56+6,7)=7,89 g)45,32-(y+12,34)=17,65
y+15,3=32,98 y-11,26 =7,89 (y+12,34)=45,32-17,65
y =32,98-15,3 y =7,89+11,26 (y+12,34)=27,67
y =17,68 y =19,15 y =27,67-12,34
y =15,33
Hok tốt!
@Kaito Kid
Tìm y:
a)y x 7= 5,6% b)42% : y= 6
a: =>y=0,056:7=0,008
b: =>y=21/50:6=21/300=0,07
Tìm y:
a) y x 4,5 = 55,8 b) y : 2,5 = 25,42
a)y=55,8 : 4,5
y=12,4
b) y=25,42 x 2,5
y= 63,55
`a)`
`yxx4,5=55,8`
`y=55,8:4,5`
`y=12,4`
`b)`
`y:2,5=25,42`
`y=25,42xx2,5`
`y=63,55`
Tìm y:
a)y ×0,75= 1,8
b)0,15 ×y = 0,483
c)y –3,48 : 1,45 = 2,7
d)0,25 ×y –0,5 = 0,125
a) y=1,8:0,75=2,4
b) y=0,483:0,15=3,22
c) y=2,7+(3,48:1,45)=5,1
d) y=(0,125+0,5):0,25=0,7
Tìm y:
a) y x 2,8 + 5,2 x y = 48
b) y x 12,25 – y + y x 2,75 = 1050
\(a,y\times2,8+5,2\times y=48\\ y\times\left(2,8+5,2\right)=48\\ y\times8=48\\ y=\dfrac{48}{8}=6\\ ---\\ b,y\times12,25-y+y\times2,75=1050\\ y\times\left(12,25-1+2,75\right)=1050\\ y\times14=1050\\ y=\dfrac{1050}{14}=75\)
a: \(y\cdot2,8+y\cdot5,2=48\)
=>\(y\left(2,8+5,2\right)=48\)
=>\(8y=48\)
=>\(y=\dfrac{48}{8}=6\)
b: \(y\cdot12,25-y+y\cdot2,75=1050\)
=>\(y\left(12,25-1+2,75\right)=1050\)
=>\(y\cdot14=1050\)
=>\(y=\dfrac{1050}{14}=75\)
tìm y:
a, y x 27 + y x 30 + y x 44 - y = 10500
b, y x 285 + 115 x y = 400
\(a,y\times27+y\times30+y\times44-y=10500\\\Rightarrow y\times\left(27+30+44-1\right)=10500\\ \Rightarrow y\times100=10500\\ \Rightarrow y=10500:100\\ \Rightarrow y=105\\ b,y\times285+115\times y=400\\ \Rightarrow y\times\left(285+115\right)=40\\ \Rightarrow y\times400=400\\ y=400:400\\ \Rightarrow y=1\)
\(a,\Rightarrow y\times\left(27+30+44-1\right)=10500\\ \Rightarrow y\times100=10500\\ \Rightarrow y=105\\ b,\Rightarrow y\times\left(285+115\right)=400\\ \Rightarrow y\times400=400\\ \Rightarrow y=1\)
. Tìm y:
a. 162 : y + 216 : y = 6
b. 602 : y + 123 x 2 = 253
c. 8 x (15720 – y) = 51784
a)\(162:y+216:y=6\)
⇔\(\left(162+216\right):y=6\)
⇔\(378:y=6\)
⇔\(y=63\)
b)\(602:y+123.2=253\)
⇔\(602:y+246=253\)
⇔\(602:y=7\)
⇔\(y=86\)
c)\(8\left(15720-y\right)=51784\)
⇔\(125760-8y=51784\)
⇔\(8y=73976\)
⇔\(y=9247\)
Tìm y:
a, y + 847 x 2 = 1953 - 74 b, y : (7 x 18) = 5839 + 8591
Tìm y:
\(a,y+847\times2=1953-74\\ y+847\times2=1879\\ y+1694=1897\\ y=1897-1694\\ y=185\\ b,y:\left(7\times18\right)=5839+8591\\ y:126=14430\\ y=14430\times126\\ y=1818180.\)
a/ y + 847 x 2 = 1953 - 74
y + 1694 = 1879
y = 1879 - 1694
y = 185
b/y : (7 x 18) = 5839 + 8591
y : 126 = 14430
y = 14430 x 126
y = 1818180
#AvoidMe
a. y + 847 x 2 = 1953 - 74
y + 1694 = 1879
y = 1879 - 1694
y = 185
b. y : (7 x 18) = 5839 + 8591
y : 126 = 14430
y = 14430 x 126
y = 1818180