Предмет: Математика, автор: 77я

среднее арифметическое двух чисел равно 17,25 одной из них составляет 0,25 от другого Найдите эти числа

Ответы

Автор ответа: Sp3ctrum

Пусть первое число - X, тогда второе число - 0.25X. По условию составим и решим уравнение.

$\frac{x+0.25x}{2}=17.25$

$\frac{1.25x}{2}=17.25$

$1.25x=34.5$

$x=27.6$

Второе число: $27.6*0.25=6.9$

Ответ: 6.9; 27.6

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