Предмет: Математика, автор: валерка29

сахарный песок при переработке в рафинад теряет 2/15 своей массы. сколько надо взять сахарного песка чтобы получить 351 кг рафинада

Ответы

Автор ответа: bdy

Составляем уравнение:
2/15*х=351;
х=15*351/2=2 632,5 (кг);
Надо взять 2 632,5 кг сахарного песка

Автор ответа: vajra

неправильное решение, ответ 405 кг.

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: История, автор: Аноним

ПжПЖЖ сделайте эссе на 《Если я буду ханом》 7 слов!!!

6 лет назад

Предмет: Английский язык, автор: amirlankarimov

50 БАЛЛОВ ДАМ ПЛИЗ ПОМОГИТЕ:3
Task 1. Read the story.
Our house had destroyed
Shelley Wood will never forget the day when her house in Florida was destroyed by a tornado .This is her story.
Shelley: It was an evening in May. I'd spent the day at home with my brother and my mum. The weather had
been warm and dry. - nothing unusual. But, when I went to bed, I could hear the rain and wind outside. I felt
quite worried because there had been tornadoes nearby in the past, but we'd never had one in my town. My dad
was away on business. He'd had always told us to hide in the cupboard in the hall if there was a tornado.
In the middle of the night I woke up. My mum was screaming. 'Shelley! Get in the cupboard' Everything was black.
I followed my mum and we all day on the floor of the cupboard. There was incredible noise. Then, a few
moments later, it was over.We stood up and looked around. The storm had completely destroyed our house.
We walked to a neighbour's house and then, in the morning we went back. My room and all my possessions had
disappeared. I found some jeans in the garden. That was all. We have a new house now, with a storm shelter. But
I still feel nervous when I hear the wind.
Then put these events in the right order (1-8).
a. The storm destroyed their house.
b. Shelley went to bed.
C. Shelley's dad told them to hide in the cupboard.
d. Shelley and her mum and brother spent the night at a neighbour's house.
e. Her dad went away on business.
f. Shelley found her jeans in the garden
g. Her mum told her to get in the cupboard.
h. They have a new house with a storm shelter.
i.They went back to their house

6 лет назад

Предмет: Математика, автор: alisha8111

Помогите срочно пожалуйста

6 лет назад

Предмет: Алгебра, автор: valter1bringstone

При каких значениях a и b решением системы уравнений
(a - 1) x + by = b + 1,
ax + (b+1)y = 5
является пара чисел ( -1; 2) ?

9 лет назад

Предмет: Математика, автор: 12050264

в магазин привезли арбузы. в 1 день продали 25% всех арбузов, во 2 день 55% арбузов, а остальные 60 кг арбузов в 3 день. сколько всего кг арбузов привезли в магазин?

9 лет назад