1) 98-22=76(км)
2) 76:4=19(км)
Уравнение:
(98-22):х=4
76:х=4
х=76:4
х=19
<span>4 17/12 = 4 + 12/12 + 5/12 = 5+5/12 = 5 5/12
7 43/18 =7 + 36/18+ 7/18 = 9 7/18
2 73/34 = 2+ 68/34 + 5/34 = 4 5/34
5 57/19 = 5 + 57/19 =5+3=8</span>
А) A ∪ B = {1,2,3,4,6,7}
B) A ∩ B = {1}