Question

Ex 7 va rog dau coroana

Answer 1

a)
(1/4-0,25)×1,19=(0,25-0,25)×1,19=0×1,19=0
b)
0,05+0,2×{0,5+[1+2×(1/5-0,2)]}=0,05+0,2×{0,5+[1+2×(0,2-0,2)]}=0,05+0,2×[0,5+(1+2×0)]
=0,05+0,2×[0,5+(1+0)]
=0,05+0,2×(0,5+1)
=0,05+0,2×1,5
=0,05+0,3
=0,35
c)
1×5/8+5,4×{1,06+[2,1-(0,2+0,8)]}
=1×5/8+5,4×[1,06+(2,1-1)]
=1×5/8+5,4×(1,06+1,1)
=1×5/8+5,4×2,16
=1×5/8+11,664
=8/8+5/8+11,664
=13/8+11,664
= 1,625+11,664=13,289