2. Найти значение x, при котором данное равенство верно: 1) x/8 = 15/40 2) 9/x = 36/52 3) 1/8 = 5/x 4) 21/98 = x/14

1) x/8 = 15/40 => x = (15/40) * 8 = 15/5 = 3 2) 9/x = 36/52 => x = (9 * 52) / 36 = 52/4 = 13 3) 1/8 = 5/x => x = 5 * 8 = 40 4) 21/98 = x/14 => x = (21 * 14) / 98 = (21 * 2) / 14 = 3