Вопрос школьника по предмету Математика
На борте самолёта 48 мест для пассажиров. Три четвёртых от этих мест уже заняты. Сколько ещё пассажиров могут сесть на оставшиеся места?
Ответ учителя по предмету Математика
48_4=12
12·3=36
48-36=12
Ответ 12 мест свободны
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у зайца?
7x+25=10x+16
3y+16=8y-9
Решите.