Question

75% * x + 3/4 * x + x = 30
Giúp e

Answer 1

75% . x + 3/4 . x + x = 30

0,75 . x + 3/4 . x + x . 1 = 30

x . ( 0,75 + 3/4 + 1 ) = 30

x . 2,5 = 30

x         = 30 : 2,5

x         = 12

Answer 2

\(\dfrac{3}{4}x+\dfrac{3}{4}x+x=30\\ \left(\dfrac{3}{4}+\dfrac{3}{4}+1\right)x=30\\ \left(\dfrac{3}{4}+\dfrac{3}{4}+\dfrac{4}{4}\right)x=30\\ \dfrac{5}{2}x=30\\ x=30:\dfrac{5}{2}\\ x=12\)

Answer 3

`3/4x + 3/4x + x = 30`

`-> 5/2 x = 30`

`-> x = 30 : 5/2`

`-> x = 12.`

Answer 4

75% . x + 3/4 . x + x = 30

0,75 . x + 3/4 . x + x . 1 = 30

x . ( 0,75 + 3/4 + 1 ) = 30

x . 2,5 = 30

x         = 30 : 2,5

x         = 12

Answer 5

75%.x+3/4.x+x=30

=>x.(0,75+3/4+1)=30

=>x.2,5=30

=>x=30:2,5

=>x=12