Ответы на вопрос:
33/5y - 2 1/3y - 1/15y = 3 9/15y - 2 5/15y - 1/15y = 1 9-2-1/15y = 1 6/15y y = 10 1 6/15*10 = 21/15*10 = 210/15 = 14
A) 0.7+0.4=1.1/21=0.05 b)0.7-0.2=0.5/3=0.16 c)0.25-0.08=0.17*5=0.85 d) 0.25-0.16/10=0.016 e) 0.8-0.25=0.55/7=0.07
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