Предмет: Математика, автор: анзор20

Туристы прошли 90 км это 2/5 от всего пути сколько им осталось пройти?

Ответы

Автор ответа: Малинка2012
0
весь путь - 1
90-2/5
х-3/5

х=90*3/5:2/5=54:2/5=54*5/2=135 (км) - осталось пройти
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