Предмет: Математика, автор: zaz968md1987

помоги реши задача √9!

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Ответы

Автор ответа: Vitek0ZeRo
0
x - количество рам в день
7x+9x=48
16x=48
x=3
Значит, Первый сделал 7*3=21 раму
а другой 9*3=27 рам
Автор ответа: zhenyaM2002
0
1) 7+9= 16  дней работали всего
2) 48:16= 3 рамы в день  (дневная выработка)
3) 3*7= 21 раму  всего сделал I сварщик за 7 дней
4) 3*9 = 27 рам    всего сделал II сварщик за 9 дней
Ответ:  21 раму сделал I сварщик, 27 рам -  II сварщик.

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