Răspuns :
a) 594-450=144
P / 100 × 450=144
P / 100=144/450=> P=100×144 / 450=32%
b) 1776-1200=576
P / 100 × 1200=576
P / 100 = 576 / 1200 => P=100×576 / 1200=48%
P / 100 × 450=144
P / 100=144/450=> P=100×144 / 450=32%
b) 1776-1200=576
P / 100 × 1200=576
P / 100 = 576 / 1200 => P=100×576 / 1200=48%
a) 450 + 450 x a% = 594
450 x a / 100 = 594 - 450
4,5 x a = 144
a = 144 / 4,5
a = 32
R : 32%
b) 1200 + 1200 x a% = 1776
1200 x a / 100 = 1776 - 1200
12 x a = 576
a = 576 / 12
a = 48
R : 48%
Succes la teme! :))
450 x a / 100 = 594 - 450
4,5 x a = 144
a = 144 / 4,5
a = 32
R : 32%
b) 1200 + 1200 x a% = 1776
1200 x a / 100 = 1776 - 1200
12 x a = 576
a = 576 / 12
a = 48
R : 48%
Succes la teme! :))