Предмет: Математика, автор: lionbs2022

В шестом классе 20 девочек, что составляет от общего 5/9 количества учеников. Сколько мальчиков учится в шестом классе? Сколько всего учеников?
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Ответы

Автор ответа: katemilafka
1

1-5/9=9/9-5/9=4/9 - мальчиков

20:5*9=36 - всего в классе учеников

36:9*4=16 - мальчиков

lionbs2022: спасибо:)
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