Ну тут на самом деле всё просто щас помогу через мин. 10
Ответ:
Пошаговое объяснение:
(62.4 + y) - 13.4 = 91 0.175 - (0.03 - x) = 0.15
62.4 + y = 91 + 13.4 0.03 + x = 0.175 - 0.15
62.4 + y = 104.4 0.03 + x = 0.025
y = 104.4 - 62.4 x = 0.025 - 0.03
y = 42 x = 0.022
(62.4 + 42) - 13.4 = 91 0.175 - (0.03 - x) = 0.15
91 = 91 0.15 = 0.15
100.3 - (9.2 - x) = 97.64
9.2 - x = 100.3 - 97.63
9.2 - x = 2.67
x = 9.2 - 2.67
x = 6.53
100.3 - (9.2 - 6.53) = 97.64
97.64 = 97.64
L = π D = 3,14*12 ≈ 37,69
А) 93-(18+6)=69
Б)(71-5)+19=71+19-5=90-5=85
В)(41-22)+(80-56)=41-22+80-56=41+58-56=41+2=43
(a+b+c)/3=122,4/60*100=204
a+a+1+a+2=612
3a+3=612
3a=609
a=203
b=204
c=205