Предмет: Математика, автор: q39196859

помогите пожалуйста мне нужно условия Школьники трёх классов помогали в уборке картофеля. Один класс собрал 230 кг картофеля, другой – на 20 кг больше, чем первый, но оба класса собрали вместе на 40 кг меньше, чем третий класс. Сколько килограммов картофеля было собрано тремя классами?

Ответы

Автор ответа: tretyaksnezha

Ответ:920кг

Пошаговое объяснение:230+20=250 кг- собрал 2 класс

250+230=480кг- собрали 2 класса вместе

480-40=440кг- собрал 3 кл

480+440=920 кг

q39196859: спасибо большое

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: luterlag

Придумайте 5 вопросов H.G. Wells (1866-1946) was a British writer and one of the first to write about time travel, space flight and alien was ins born in Bromley, Kent, on 21st September,
1866. He left school when he was only fourteen and worked in various jobs in
order to earn money for his family. After a number of unsuccessful years working as a shop assistant, a chemist's assistant and a teaching assistant, he won a scholarship to study biology under T.H. Huxley, a friend and follower of Charles Darwin, at the Royal College of Science in London. While he was at this college, he became interested in society and often thought about ways to organise it better. He did not like the fact that there were rich people and poor people in the world and thought that everyone should be equal.
Wells left college in 1887 and became a teacher.
Later, he married Amy Catherine Robbins and they had two sons together. He began writing in his free time and published his first novel, The Time Machine, in 1895. Other famous novels include The Invisible Man (1897) and The War of the Worlds (1898). Once he was able to financially, he left teaching to write full time, and produced a large body of work, both fiction and non-fiction.
Wells died in London, on 13th August, 1946. Today, people remember him as one of the best science-fiction writers of all time and as a man who had great ideas on how to improve our world. He invented words like 'time machine', 'parallel universe and
'heat-ray', and made many predictions about the future that have come true.

11 месяцев назад

Предмет: Қазақ тiлi, автор: ivan6162

Скифтер аттарын немен қорғаған?
Еуропада қарулар қай ғасырда пайда болды?
ПОМОГИТЕ ДАЙТЕ ОТВЕТ

11 месяцев назад

Предмет: Английский язык, автор: Аноним

1 Choose the correct words to complete the sentences.
I've got some/any homework to finish this evening.
2 There are some/any fruit trees in our garden.
3 Have you got some / any pets?
4 Some/Any people play video games every day.
5 We haven't got some/any bread. Can you buy some?
6 Is there some/any ice on the road?
7 There weren't some/any special effects in the film.com
Помогите

11 месяцев назад

Предмет: Математика, автор: lizaalexeevna2007

2. Вычислить НОД чисел
1). НОД (21;42) = 2). НОД (24 , 10)= 3). НОД (6, 39)=
4). НОД (39, 18)= 5). НОД (6, 36)= 6). НОД (27 , 24)=
7). НОД (10, 16)= 8). НОД (24 , 16)= 9). HОД (27 , 12)=
10). НОД (36 и 42)

6 лет назад

Предмет: Алгебра, автор: tanyagolub1982

Одного разу у супермаркеті зустрілися двоє друзів, що не бачилися багато років. Один спитався іншого, скільки той має дітей. Відповідь була така: «Я тільки що придбав своїм дітям подарунки на Новий рік. Якщо я дам кожному по два подарунки, то три подарунки будуть зайвими, а якщо я дам кожному по три подарунки, то одного подарунка не вистачить.» То скільки ж дітей у одного з друзів?

6 лет назад