30% x Y+Y=52
\(\frac{3}{10}\) x Y+Y=52
(\(\frac{3}{10}\)+1) x Y=52
\(\frac{13}{10}\) x Y=52
Y=52:\(\frac{13}{10}\)
Y=40
30 % x Yx2=52
30 %x Y= 54:2
30% xY= 27
Y = 27:30%
Y =90
30 % xY x 2 = 52
30 % xY = 54 :2
30% x Y =27
Y = 27 : 30 %
Y = 90
= 30/100 x y + y = 52
= 2y = 30/100 : 52
= 2y = 3/ 520
Tự túc là HP
30%*Y+Y=52
30%*Y+100%*Y=52
130%*Y=52
Y=52/130%
Y=40
Y*30%+Y=52
Y*30%+Y*100=52
Y*130%=52
Y=40
30/100x 2y =52
2y=52: 30/100
2y=52/7
y=52/7:2=26/7
30% . y + y = 52
3/10 . y + y = 52
(3/10 + 1) . y = 52
13/10 . y = 52
y = 52 : 13/10
y = 40
30% x Y + Y = 52
Câu hỏi tương tự Đọc thêmToán lớp 50.3 * Y+ Y=52
Y*(0.3+1)=52
Y*1.3=52
Y=52/1.3
Y=40
to vua moi ra ket qua =40.Cam on moi nguoi da giup do.