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\(=\frac{75}{100}x1+\frac{75}{100}x29+\frac{75}{100}x30+\frac{75}{100}x40\)
\(=\frac{75}{100}x\left(1+29+30+40\right)\)
\(=\frac{75}{100}x100\)
\(=75\)
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`@Neo`
`75/100 + 3/4 xx 29 +75% xx 30 + 0,75 xx 40 `
`=75/100+3/4xx29+75/100xx30+3/4xx40`
`=75/100+75/100xx29+75/100xx30+75/100xx40xx1`
`=75/100xx(29+1+30+40)`
`=75/100xx100`
`=7500/100=75/1=75`
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`75/100 + 3/4 xx 29 +75% xx 30 + 0,75 xx 40 `
`=75/100+3/4xx29+75/100xx30+3/4xx40`
`=3/4+3/4xx29+75/100xx30+3/4xx40xx1`
`=3/4xx(29+1+30+40)`
`=3/4xx100`
`=300/4=75/1=75`
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`75/100 + 3/4 xx 29 +75% xx 30 + 0,75 xx 40 `
`=0,75+0,75×29+0,75×30+0,75×40`
`=0,75×(1+29+30+40)`
`=0,75xx100`
`=75`
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
Có: \(\dfrac{7}{6}\times\dfrac{1}{2}+\dfrac{7}{6}\times\dfrac{3}{4}+\dfrac{7}{6}+\dfrac{15}{4}\)
\(=\dfrac{7}{6}\times\left(\dfrac{1}{2}+\dfrac{3}{4}+1\right)+\dfrac{15}{4}\)
\(=\dfrac{7}{6}\times\dfrac{9}{4}+\dfrac{15}{4}\)
\(=\dfrac{63}{24}+\dfrac{90}{24}=\dfrac{51}{8}\)
7/6 × 1/2 + 7/6 × 3/4 + 7/6 × 15/4
= 7/6 × (1/2 + 3/4 + 15/4)
= 7/4 × (2/4 + 3/4 + 15/4)
= 7/4 × 5
= 35/4
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\frac{38132}{725}\)