Question

a) X + 1,25 = 13,5 : 4,5

b) X x 4,25 = 1,7 x 34

Answer 1

a,x+1,25=30

x=30-1,25

x=28,75

b,x.4,25=57,8

x=57,8:4,25

x=13,6

Answer 2

a) X + 1,25 = 13,5 : 4,5

⇔ X + 1,25 = 3

⇔ X = 3 -1,25

⇔ X = 1,75

b) X x 4,25 = 1,7 x 3

⇔X x 4,25 = 5,1

⇔X = 5,1 : 4,25

⇔X = 1,2

Answer 3

a) X + 1,25 = 13,5 : 4,5

 X + 1,25 =  3

X = 3 - 1,25

X = 1,75

b) X x 4,25 = 1,7 x 34

X x 4,25 =57.8

X = 57.8 : 4.25

X =  13.6

Answer 4

`a)x+1,25=13,5:4,5`

`=>x+1,25=3`

`=>x=3-1,25=1,75`

`b)x xx4,25=1,7xx34`

`=>x xx4,25=57,8`

`=>x=57,8:4,25`

`=>x=13,6`

Answer 5

a)\(x=\left(13,5:4,5\right)-1,25=3-1,25=1,75\)

b)\(x=\dfrac{1,7\times34}{4,25}=\dfrac{57,8}{4,25}=13,6\)

Answer 6

`X + 1,25 = 13,5 : 4,5`

`X + 1,25 = 3`

`X = 3-1,25`

`X = 1,75`

`X xx 4,25 = 1,7 xx 34`

`X xx 4,25 = 5,78`

`X  = 5,78 : 4,25`

`X = 1,36`

Answer 7

a)x+1,25 = 3

x= 3 - 1,25= 1,75

b) x.4,25 = 57,8

x = 13,6(. là dấu nhân nha)

Answer 8

a) X + 1,25 = 13,5 : 4,5

X + 1,25 = 3

X = 3 - 1,25

X = 1,75

b) X x 4,25 = 1,7 x 34

X x 4,25 = 57,8

X = 57,8 : 4,25 

X = 13,6.

Answer 9

a) x + 1,25 = 30

    x            = 30 - 1,25

    x            = 28,75

b) X x 4,25 = 57,8

    X            = 57,8 : 4,25

    X            = 13,6

Answer 10

ơ kìa sao sai hoài dẩy