Предмет: Математика, автор: kristinakluha

провод длиной 1м разрезали на две части так, что одна часть оказалась длиннее другой на 200 мм. найди длину каждой части?

Ответы

Автор ответа: FEMISTOKL
4
Пусть X - длина второй части тогда длина первой  X+200. 
1 м = 1000мм
Составляем уравнение
X+X+200=1000
2X=1000-200
2X=800
X=800:2
X=400
400 мм - длина второй части
400+200=600 мм - длина первой части
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