Вопрос школьника по предмету Математика
Помогите пожалуйста математика 6 класс:
Найдите 2 числа если:
1) Значение их суммы равно 5, а значение их частного равно 4.
2) Значение их разности равно 2, а значение их частного равно 1,2.
Ответ учителя по предмету Математика
1) x + y = 5; x : y = 4;
Из 1 выводим: x = 5 — y. Подставляем во второе: 5 — y = 4y;
5y = 5; y = 1;;
x = 5 — 1 = 4;
2) x — y = 2; x = 7y;
7y — y = 2; 6y = 2; y = 1/3;
x = 7/3 = 2 1/3;
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