2,6×{5,8+6,25×[9,3-3,1×(8,76-2×2,88)] }=
=2,6×[5,8+6,25×(9,3-3,1×3)]=
=2,6×(5,8+6,25×0)=
=2,6×5,8=
=15,08
[1,2+3,2×(3x+0,75)]÷3=3,6|×3
1,2+9,6x+2,4=10,8
3,6+9,6x=10,8|-3,6
9,6x=7,2|:9,6
x=0,75
Vp.d.=L×l×h
V=2,5×1,5×1
V=3,75m cubi
3,75m cubi=3750 dm cubi=3750 l
V (cu h=0,6m)=2,5×1,5×0,6=2,25 m cubi=2250 dm cubi=2250 litri
3750-2250=1500 de litri mai trebuie