Question

30%+y+y=52

Answer 1

3/10+2y=52

2y=52-3/10

2y=517/10

y=517/20

Answer 2

\(30\%y+y=52\)

\(\frac{3}{10}y+y=52\)

\(\frac{13}{10}y=52\)

\(y=\frac{52\times10}{13}=40\)

Answer 3

\(30\%+y+y=52=>30\%+2y=52\)

\(=>2y=52-30\%\)

\(=>2y=51,7\)

\(=>y=25,85\)

Answer 4

Hoàng Tiến Sai rồi 

Answer 5

30 % + y + y   = 52 

30/100 + y + y = 52 

30/100 + y x 2 = 52

0,3 + y x 2      = 52

        y x 2       = 52 - 0,3 

        y x 2       = 51,7 

               y      = 51,7 : 2 

               y      = 25,85 .

Answer 6

cảm ơn các cậu ^ ^