Предмет: Математика, автор: artuhha1

Решите 4 вариант¡!!!!!¡!¡!¡!!¡!!¡!!!!!!!

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Автор ответа: 2Малайка2

0

1.) 1. 160÷100=1,6
2. 1,6•25=40
2.) не пойму
3.) 13+3,2х+0,4х=40
13+3,6х=40
3,6х=40-13(27)
3,6х=27
х=27÷3,6
х=7,5

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