Odpowiedzi

2009-11-15T21:12:29+01:00
(1 1/3*4+0,4*2,5)*0,75= (4/3*4+4/10*25/10)*3/4=
=(16/3+1)*3/4=19/3*3/4=19/4=4¾
2009-11-15T21:15:52+01:00
2009-11-15T21:15:42+01:00
(1 1/3 × 4+0,4 × 2,5) × 0,75= (4/3 × 4 × 2/5 × 5/2) × 3/4=
(16/3 +1) × 3/4 = (16/3 + 1/3) × 3/4 = 17/3 × 3/4 = 4,25