Решите поопорцию 1)6/7 = 36/х2)13/35= х/42
1) x=36*7/6 X=42 2) x=13*42/35 X=15,6
6/7 = 36/х
6х = 7 * 36
6х = 252
х = 252 : 6
х = 42
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13/35 = х/42
35х = 13 * 42
35х = 546
х = 546 : 35
х = 15,6