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![](https://rs.olm.vn/images/avt/0.png?1311)
y + y : 0,5 + y : 0,25 + y : 0,125 = y + 2y + 4y + 8y = 15y = 15 => y = 15 : 15 = 1
![](https://rs.olm.vn/images/avt/0.png?1311)
\(y\div0,125+y\div0,5+y=9,9\)
\(\Leftrightarrow y\times8+y\times2+y=9,9\)
\(\Leftrightarrow y\times\left(8+2+1\right)=9,9\)
\(\Leftrightarrow11y=9,9\)
\(\Leftrightarrow y=0,9\)
Trả lời:
y : 0,125 + y : 0,5 + y = 9,9
y : 0,125 + y : 0,5 + y : 1 = 9,9
y : ( 0,125 + 0,5 + 1 ) = 9,9
y : 1,625 = 9,9
y = 9,9 x 1,625
y = 16,0875. Vậy y = 16,0875
![](https://rs.olm.vn/images/avt/0.png?1311)
135 + y x 9,5 + y : 0,125 = 310
y x 9,5 + y x 8 = 310 - 135
y x (9,5 + 8) = 175
y x 17,5 = 175
y = 175 : 17,5
y = 10
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
Ta có : y : 0.125 + y : 0.5 + y = 9.9
y × 8 + y × 2 + y = 9.9
y × ( 8 + 2 + 1 ) = 9.9
y × 11 = 9.9
y = 9.9 : 11
y = 0.9
Vậy y = 0.9
# chúc bạn học tốt #
y:0,125+y:0,5+y=9,9
yx8+yx2+yx1=9,9
yx(8+2+1)=9,9
yx11=9,9
y=9,9:11
y=0,9
![](https://rs.olm.vn/images/avt/0.png?1311)
Ta có : y : 0.125 + y : 0.5 + y = 9.9
y × 8 + y × 2 + y =9.9
y × ( 8 + 2 + 1 ) = 9.9
y × 11 = 9.9
y = 9.9 : 11
y = 0.9
Vậy y = 0.9
# chúc bạn học tốt #
![](https://rs.olm.vn/images/avt/0.png?1311)
y + y + y : 0,5 + y : 0,25 + y : 0,125 = 15
y x 2 + y x 2 + y x 4 + y x 8 = 15
y x (2 + 2 + 4 + 8) = 15
y x 16 = 15
y = 15 : 16
y = 0,9375
k cho tớ nhé
y + y + y : 0.5 + y : 0.25 + y :0.125 = 15
yx2+yx1/2+yx1/4+yx1/8=15
yx(2+1/2+1/4+1/8)=15
yx23/8=15
y=15:23/8=120/23
\(\text{y:0,125+y:0,5+y=9,9}\)
\(y:\left(0,125+0,5+1\right)=9,9\)
\(y:\frac{13}{8}=\frac{99}{10}\)
\(y=\frac{99}{10}.\frac{13}{8}\)
\(y=\frac{1287}{80}\)
học tốt