Odpowiedzi

2010-01-06T18:49:47+01:00
Y/10 = x/15
x+y= 5

y=10x/15
y=5x/3

x+ 5x/3 = 5

3x+5x=15
8x=15
x=15/8
x= 1,875

y= [5* 15/8 ]/3
y=[75/8]/3
y= 3,125