Odpowiedzi

2009-12-01T15:56:37+01:00
0.02x+ 0.1y= 0.06×0.12
x+y=0.12

0.02(0.12-y)+ 0.1y= 0.0072
x=0.12-y

0.0024+0.08y=0.0072
0.08y=0.0048
y=0.06
x=0.06