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a)
0*9+1*5+2*8+3*4/9+5+8+4=33/26=1,27
b)
1+2/2=3/2=1,5
zad2
a)
11z + 9z =11*192+9*187
20z=2112+1683
20z=3795 /20
z=189,75cm
b)
62m+54m+44m= 62*28 + 54*32 + 44*54
160m=1736+1728+2376
160m=5840 /160
m=36,5