Вопрос школьника по предмету Математика
Із 25 учнів класу 9 учнів отримали за контрольну роботу з математики оцінку «10». Скільки відсотків учнів отримало оцінку «10» ?
Ответ учителя по предмету Математика
Пропорция: 25 учеников — 100%
9 учеников — х%
х = 9 · 100 : 25 = 900 : 25 = 36% — столько процентов всех учеников получили оценку «10».
Вiдповиiь: 36%.
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