Odpowiedzi

2009-12-15T20:24:42+01:00
2009-12-15T20:29:05+01:00
X+y=1000
1,25x+0,8y=1,1*1000 (1100)

x=1000-y
1,25(1000-y)+0,8y=1100

x=1000-y
1250-1,25y+0,8y=1100

x=1000-y
1250-0,45y=1100

x=1000-y
-0,45y=-150

x=1000-y
y=333 1/3

x=1000-333 1/3
y=333 1/3

x=666 2/3
y=333 1/3
2009-12-15T20:29:22+01:00
X + y = 1000
120% * x + 80 % * y = 110% * 1000

x+y=1000
1,2x+0,8y=1,1*1000 /*10

x+y=1000
12x+8y=11000

x=1000-y
12(1000-y)+8y=11000

x=1000-y
12000-12y+8y=11000

x=1000-y
-4y=-1000 /:(-4)
y=250

x=1000-250
y=250

x=750
y=250
:)