Предмет: Математика, автор: zhanelyaaltynbek022

Номер 754
Число учащихся в трёх пятых классах больше числа учащихся 5 "А" класса на 64, больше числа учащихся 5 "Б" класса на 61 и больше числа учащихся 5 "В" класса на 59. Сколько учеников в трёх пятых классах?

Ответы

Автор ответа: bumbimbam

Ответ:

Пусть учеников в трех пятых классах - х, тогда в 5А х-64 ученика, в 5Б х-61 учеников, а в 5В х-59 учеников.

Составим уравнение:

х-64+x-61+x-59=x

2x-164=0

2x=184

x=92

92 ученика

Ответ:92 ученика в трех пятых классов

zhanelyaaltynbek022: спасибо большое

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