\(\dfrac{75}{100}+\dfrac{3}{4}\times29+75\%\times30+0,75\times40\)

\(=0,75+0,75\times29+0,75\times30+0,75\times40\)

\(=0,75\times\left(1+29+30+40\right)\)

\(=0,75\times\left(30+70\right)\)

\(=0,75\times100\)

\(=75\)

\(=\frac{75}{100}x1+\frac{75}{100}x29+\frac{75}{100}x30+\frac{75}{100}x40\)

\(=\frac{75}{100}x\left(1+29+30+40\right)\)

\(=\frac{75}{100}x100\)

\(=75\)

75/100 + 3/4 x 29 + 75/100 x 30 + 0,75 x 40

= 0,75 x 1 + 0,75 x 29 + 0,75 x 30 + 0,75 x 40

= 0,75 x ( 1 + 29 + 30 + 40 )

= 0,75 x 100

= 75

\(\dfrac{75}{100}\) + 0,75 x 29 + 75% x 30 + \(\dfrac{3}{4}\) x 40

= 0,75 x 1 + 0,75 x 29 + 0,75 x 30 + 0,75 x 40

= 0,75 x (1 + 29 + 30 + 40)

= 0,75 x 100

= 75

= 75

75

Tham khảo:

75/100 + 3/4 x 29 + 75% x 30 + 0,75 x 40

= 0,75 + 0,75 x 29 + 0,75 x 30 + 0,75 x 40

= 0,75 x (1 + 29 + 30 + 40)

= 0,75 x 100

= 75

`@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`

__________________________________________

`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`

________________________________________

`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`

`75/100+3/4xx29+75%xx30+0,75xx40`

`=3/4+3/4xx29+3/4xx30+3/4xx40`

`=3/4xx(1+29+30+40)`

`=3/4xx100=75`

Mình ko hiểu

Bạn viết lại đề bài đi rồi mình giải cho

75phan100 + 3phan4 x29 +76% x 30 + 0,75 x40

\(\frac{75}{100}+\frac{3}{4}.29+75\%.30+0,75.40\)

\(=\frac{75}{100}+\frac{3}{4}.29+\frac{75}{100}.30+\frac{75}{100}.40\)

\(=\frac{3}{4}+\frac{3}{4}.29+\frac{3}{4}.30+\frac{3}{4}.40\)

\(=\frac{3}{4}.\left(1+29+30+40\right)\)

\(=\frac{3}{4}.100\)

\(=75\)

_Chúc bạn học tốt_

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

đáp số: 62868

62868

[75 x 19] x30 :19 x28 -132=? 

= 1425 x 30 : 19 x 28 - 132 

= 42750 : 19 x 28 - 132 

= 2250 x 28 - 132 

= 63000 - 132 

= 62868