Odpowiedzi

2009-11-10T19:21:02+01:00
3x+6x+7x = 128cm
16x = 128cm
x = 8cm

Jeden bok: 3x = 8cm * 3 = 24cm
Drugi bok: 6x = 8cm * 6 = 48cm
Trzeci bok: 7x = 8cm * 7 = 56cm
2009-11-10T19:23:01+01:00
128:16=8
1 bok 3*8=24
2 bok 6*8=48
3 bok 7*8=56

2009-11-10T19:24:31+01:00
3:6:7
a+b+c=128
3x+6x+7x=128
16x=128
x=8
a=3×8=24[cm]
b=6×8=48[cm]
c=7×8=56[cm]