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y<1/1000 =>y<1:1000=0,001.
vậy y có thể có rất nhiều giá trị.
ai tick mình mình tick lại cho
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y×95-y×55+y×60=20900
(95-55+60)×y=20900
100×y=20900
y=20900÷100
y=209
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a) \(24\times y+76\times y=100\)
\(\Rightarrow\left(24+76\right)\times y=100\)
\(\Rightarrow100\times y=100\)
\(\Rightarrow y=100:100\)
\(\Rightarrow y=1\)
b) \(125\times y-100\times y=1000\)
\(\Rightarrow\left(125-100\right)\times y=1000\)
\(\Rightarrow25\times y=1000\)
\(\Rightarrow y=1000:25\)
\(\Rightarrow y=40\)
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2020-y:8×10=1000
y:8×10=2020-1000
y:8×10=1020
y:8=1020:10
y:8=102
y=102×8
y=816
Vậy y=816
y = 816
tk cho mk nha !! Chúc bạn năm mới vui vẻ gặp nhiều may mắn
Thank you very much
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\(a.16307:y=45\left(dư\text{ }17\right)\)\(\Leftrightarrow45\text{×}y+17=16307\)
\(45\text{×}y=16307-17\)
\(45\text{×}y=16290\)
\(y=16290:45\)
\(y=362\)
\(b.y\text{×}52+y\text{×}48=36700\)
\(y\text{×}\left(52+48\right)=36700\)
\(y\text{×}100=36700\)
\(y=36700:100\)
\(y=367\)
a) 16307= 45*y+17 -> y=(16307-17)/45= 362
b) y*(52+48)= 36700 -> y=36700/100= 367
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Tìm y biết:
2020 - y : 8 x 10 = 1000
y : 8 x 10 = 2000 - 1000
y : 8 x 10 = 1000
y : 8 = 1000 : 10
y : 8 = 100
y = 100 x 8
y = 800
Vậy y = 800
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a,+) 4/x=12/15
=>15*4=12*x
=>60=12*x
=>x=5;có 4/x=y/45
=>4/5=y/45
=>36/45=y/45
=>y=36
Vậy x=5:y=36
b,3/x=1/y=6/24
=>3/x=1/y=1/4
có: 1/y=1/4
=>y=4
có: 1/4=3/x
=>1x=3*4
=>x=12
Vây x=12
y=4
hok tot
a) \(\frac{4}{5}=\frac{12}{15}=\frac{36}{45}\)
Tự giải quyết nốt =))
Ta có : y . 45 + y . 55 = 1000
y ( 45 + 55 ) = 1000
y . 100 = 1000
y = 1000 : 100
y = 10
Vậy y = 10
y.45+y.55=1000
y.(45+55)=1000
y. 100 =1000
y =1000:100
y =10
Vậy y=10