K
Khách
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Các câu hỏi dưới đây có thể giống với câu hỏi trên
RL
2
28 tháng 1 2024
y x 7 + y x 3 = 9600
y x ( 7 + 3 ) = 9600
y x 10 = 9600
y = 9600 : 10
y = 960
28 tháng 1 2024
y x 7 + y x 3 = 9600
y x (7+3) = 9600
y x 10 = 9600
y =9600 : 10
y = 960
NM
1
DT
1
8 tháng 12 2020
x*2+y*3+y*5=9600
x*2+y*(3+5)=9600
x*2+y*8=9600
x*2+y=9600:8
x*2+y=1200
x+y=1200:2
x+y=600
Chỉ cần giản ước đến đó thôi!Tính thêm thì có là thánh cũng ko tính được câu này
NT
1
24 tháng 11 2021
y x 2 + y x 3 + y x 5 = 9600
y x ( 2 + 3 + 5 ) = 9600
y x 10 = 9600
y = 9600 : 10
y = 960
_HT_
PT
1
)
H
30 tháng 3 2023
`y : 5/11 = 2/5 : 2`
`=> y : 5/11 = 2/5 xx1/2`
`=> y : 5/11 = 2/10`
`=> y : 5/11 =1/5`
`=> y= 1/5 xx 5/11`
`=> y= 5/55`
`=> y=1/11`
CK
1
2 tháng 3 2016
\(y+y\times\frac{1}{3}\div\frac{2}{9}+y\div\frac{2}{7}=252\)
\(3y\times\frac{1}{3}\div\frac{2}{9}\div\frac{2}{7}=252\)
\(3y\times\frac{21}{4}=252\)
\(3y=252\div\frac{21}{4}\)
\(3y=48\)
\(y=48\div3\)
\(y=16\)
y x 7 + y x 3 = 9600
y x ( 7 + 3 ) = 9600
y x 10 = 9600
y = 9600 : 10
y = 960
7y+3y=9600
10y=9600
y=9600/10=960
`y xx 7 + y xx 3 = 9600`
`=> y xx (7+3) = 9600`
`=> y xx 10 = 9600`
=> y = 9600 : 10
=> y = 960
Vậy ...
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y.7+y.3=9600
y.(7+3)=9600
y.10=9600
y=9600:10
y=960
Vậy y=960