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среднее арифмтическое двух чисел7,84.ПЕРВОЕ ЧИСЛО больше второго в 0,4 раза.Найдите эти числа.
срочно!!!-
Предмет:
Математика -
Автор:
magdalenafoqf - 6 лет назад
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Ответы 1
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(х*0,4+х)/2=7,84, отсюда х=11,2-второе число, а первое число =11,2*0,4=4,48
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Автор:
freddy - 6 лет назад
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