1) 1/5*5.5=0.2*5.5=1.1
1.1-1/2=1.1-0.5=0.6
2) 1/6*9.6=1/6*48/5=8/5=1.6
1.6-1=0.6
44 - z=27
z=44-27
z=17
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44-17=27
27=27
(120 + 130) : 50 = 5
1000 : (250 х 2) = 2
440 : (2 х 2) = 110
1000 : (32 + 68) = 10
210 : (20 + 50) = 3
2*П/3*180/П
<span>П сокращаем и получаем 120 градусов</span>
14/10.................................