Question

tìm x

\(\frac{1}{2}+\frac{9}{2}=x:20\)

Answer 1

x = 100 nha

Answer 2

\(\frac{1}{2}+\frac{9}{2}=x:20\)

\(5=x:20\)

\(x=100\)

Answer 3

\(\frac{1}{2}+\frac{9}{2}=x:2\)

\(5=x:2\)

\(x:2=5\)

\(x=5.2\)

\(x=10\)

ai kcho mình k lại

Answer 4

\(\frac{1}{2}\)+ \(\frac{9}{2}\)= x : 20

\(\frac{10}{2}\)= x : 20

5 = x : 20

5 x 20 = x

100 = x

Vậy x = 100

Answer 5

1/2 + 9 /2 = x : 20

   10/2 = x: 20 

     5 = x : 20

     x = 20 : 5 

     x = 4

mình trả lời đầu tiên tk cho mình nha

Answer 6

\(\frac{1}{2}+\frac{9}{2}=\)x : 20

2 = x : 20

x = 2 x 20

x = 40 

 Vậy x = 40

Answer 7

bằng 220  đúng không

Answer 8

1/2+9/2=x:20

5=x:20

x=20x5

x=100

Answer 9

Mk nhầm :

\(\frac{1}{2}+\frac{9}{2}=x:20\)

\(5=x:20\)

\(x=5x20\)

\(x=100\)

Answer 10

đề scos nhầm 1 tí 20 là 2

Answer 11

\(\frac{1}{2}\)+ \(\frac{9}{2}\)= x : 2

\(\frac{10}{2}\)= x : 2

5 = x  : 2

5 x 2 = x

10 = x

Vậy x = 10

Answer 12

1/2+9/2=x:20

x:20=5

x=20x5

x=100

Answer 13

\(\frac{1}{2}+\frac{9}{2}=x\div20\)

            \(5=x\div20\)

 \(x\div20=5\)

            \(x=5\times20\)

           \(x=100\)