Question

a x - 4/5 = 7/25 b x :3/5 = 7/9 c x x 15 = 2850 d x : 52 = 113

giúp .

Answer 1

a x - 4/5 = 7/25

x = 7/25 + 4/5

x = 27/25

 

b x :3/5 = 7/9

x = 7/9 x 3/5

x = 7/15

 

c x x 15 = 2850

x = 2850 : 15

x = 190

 

d x : 52 = 113

x = 113 x 52

x = 5876

Answer 2

a: x=7/25+4/5=7/25+20/25=27/25

b: x:3/5=7/9

nên x=7/9x3/5=21/45=7/16

c: 15x=2850

nên x=190

Answer 3

`a)x=7/25+4/5`

`=7/25+20/25`

`=27/25`

`b)x:3/5=7/9`

`x=7/9x3/5`

`x=7/16`

`c)x xx 15 = 2850`

`x = 2850 : 15`

`x = 190`

`d)x = 113 xx 52`

`x = 5876`

Answer 4

 

a, x - 4/5 = 7/25 

    x - 4/5 = 7/25

     x        = 7/25 + 4/5

       x = 27/25

 

b, x :3/5 = 7/9

x :3/5 = 7/9

x = 7/9 x 3/5

x = 7/15

 

c,x x 15 = 2850

x x 15 = 2850

x = 2850 : 15

x = 190

 

d,x : 52 = 113

 x : 52 = 113

x = 113 x 52

x = 5876