Предмет: Математика, автор: DikoSYa170398

135 книг распределили на 2 полки пропорционально числам 2 и 3. На сколько книг больше на второй полке, чем на первой?СРОЧНО НАДОО!!!

Ответы

Автор ответа: Матов

0

135=60+75

тоесть 2*30+3*25

тоесть больше на 15

Автор ответа: Sungat777

0

Составим систему уравнений:

х-1 полка

у-2 полка

х+у=135

х/у=2/3

3х=2у

у=1,5х

1,5х+х=135

2,5х=135

х=54

у=1,5х=1,5*54=81

81-54=27

Ответ: 27

Дай лучшее решение!!!!!!!!!!1

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Русский язык, автор: Мася6643783

Срочно!!!
Напишите 1 предложение с сочинительной и подчинительной связю и схема его.

1 год назад

Предмет: Английский язык, автор: Lenaa35

Помогите плиз, переводчик неправильно переводит

In the past clothes were made by individuals, now clothes are made both by individuals and at big factories.
2. Some years ago the plant didn`t manufacture televisions, it only manufactured radios. Now both radios and televisions are manufactured here.
3. Such a situation wasn`t predicted by the group of economists who studied the problem last year.
4. Did prices for fuel grow last year?
5. Are industrial products manufactured in the area? -No, it is an agricultural area. Only some agricultural products are processed here at small factories.
6. The plant hasn`t employed new workers this year.
7. All data had been considered before a decision was made.
8. High living standards were achieved in West European countries after World War II.
9. Unemployment was very high in the 1930 in the USA.
10. The market of services developed very fast in Russia in the 1990s
11 There were forces in the Parliament that opposed the decision which had been made by the government.

1 год назад

Предмет: Английский язык, автор: Twinsister11

перевод не нужен!
Recast the following sentences, using verbs instead of the nouns and phrases in bold type.

1. Go as far as the traffic lights, then take a(turning) to the right. 2. Now after your(explanation) the situation has become a little clearer. 3. He wants your(help). 4. She gave me a(look) full of excitement. 5. He saw her coming and made a(step) back to let her pass. 6. You have such a happy(look) on your face. What is it? Another letter from home? 7. Do not make(promises) if you are not sure you can keep them. 8. In the overcrowded bus I felt somebody give me a(push). 9. I saw that he was pleased with my honest(answer). 10. My(advice) to you is to teach him a good lesson. 11. While walking along the river they heard a loud(cry) for help.

1 год назад

Предмет: Русский язык, автор: 2fastiko228

составьте синквейн к сову коркыт

7 лет назад

Предмет: Русский язык, автор: makspenkin243

Помогите пжжж синтаксический разбор предложения:ОН ЛЮБИЛ ЕЁ ВСЕМ СЕРДЦЕМ

7 лет назад