1) 87-12=75(л) - томатного
2) 87+75=162 (л ) сока всего
3) 162/3=54 банок
<span>(7, 8, 9), (1, 0), (5), (3, 2, 5, 4)</span>
<span><span>A (2; 5) => 5 = k*2 => k = 2,5 = > y = 2,5xA(3:6) => 6 = k*3 => k = 2 => y = 2x</span></span>
1) 7121540500+881510200=8003050700
2) 20x(с+d)=160061014000
0,9х = 270
х=300.......................................................................................