Question

30% x y +y =52

tìm y

Answer 1

30%=0,3.Ta có

0,3xy+yx1=52

yx(0,3+1)=52

yx1,3=52

y=52/1,3

y=40

Answer 2

30% x y + y = 52

=> 3/10 x y + 1 x y = 52

=> y x (3/10 + 1) = 52

=> y x 13/10 = 52

=> y = 52 : 13/10

=> y = 40

Answer 3

30%*y+y=52

=> 3/10*y+1*y=52

=> y*(3/10+1)=52

=> y*13/10=52

y=52:13/10=40 Đs 40

Answer 4

\(\frac{3}{10}\) *y + y = 52

13*y=52

      y=52:13

      y=4

Answer 5

\(\frac{3}{10}\) * y =52

           y =52 : \(\frac{3}{10}\)

           y =40

Answer 6

\(\frac{13}{10}\) * y =52

           y = 52 : \(\frac{13}{10}\)

           y =40

Answer 7

\(\frac{13}{10}\) * y = 52

           y = 52 : \(\frac{13}{10}\)

           y = 40

Answer 8

mình ngại giải cho nên y =40