Предмет: Математика, автор: Алдияр

В магазине было  429 пачек сметаны, кефира и молока Сколько было пачек молока, кефира, сметаны в отдельности, если молока и кефира было 304 пачки, а кефира и сметаны 256 пачек. Решите пожалуйстааааааааа!!!!!!

Ответы

Автор ответа: Alissa
0

пусть молока - х, тогда кефира 304-х,  а сметаны: 256-(304-х). Составим уравнение

х+(304-х)+256-(304-х)=429

х+304-х+256-304+х=429

х=429-256

х=173 молока

2) 304-173=131 кефира

3) 256-131=125 сметаны

ответ в магазине было 173 пачки молока, 131 кефира и 125 сметаны.

проверка : 173+131+125=429

 

Автор ответа: Алёнушка12
0

Молока-? п 

Кефира-? п.           всего(душка 304 п.) на мол. и кеф.

Сметана-? п.            всего (душка 256 п.)на кеф. и смет.

всего (большая душка 429 п.)на мол.,кеф.,смет.

1) 429-304=125(п.)-было сметаны.

2)256-125=131(п.)-было кефира.

3)304-131=173 (п.)-было молока.

Ответ:173 пачки было молока;131 пачка было кефира;125 пачек было сметаны. 

  

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