Предмет: Математика, автор: ilonaobezyk1

Поможіть рішити задачу. Маса зайця на 3 кг більша за масу короля. Маса двох зайців така сама, як і 5 королів. Яка маса зайця, а яка - короля?

Ответы

Автор ответа: triolana
0
маса 1 кроля х
маса 1 зайця х+3
маса 2 зайців 2(х+3)
маса 5 кролів 5х
складемо рівняння
5х=2(х+3)
5х=2х+6
5х-2х=6
3х=6
х=6:3
х=2 кг маса 1 кроля
2+3=5 кг маса 1 зайця
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1. Поставьте «+» при правильном использовании «much» или «many», поставьте «-» - при неверном.
1. We don’t have many food in the house.
2. I can’t give you many information about the company.
3. I need much apples for the pie.
4. How many people are there in your office?
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7. My son earns much money now.
8. They saw many snow in the mountains.
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5. Поставьте подходящее слово из скобок.
1. There is too … (much/many/a few) salt in the soup. (В супе слишком много соли.)
2. There are … (much/a little/a few) sky-scrapers in our city. (В нашем городе есть несколько небоскребов.)
3. I’ve got … (much/a few/a little) albums of this singer. (У меня есть несколько альбомов этого исполнителя.)
4. My job allows me to travel … (much/many/a few). (Моя работа позволяет мне много путешествовать.)
5. We’ve got … (little/many/few) free time. (У нас мало свободного времени.)
6. I have never seen so … (much/little/many) stars in the sky. (Я никогда не видел так много звезд в небе.)
7. Anna spent … (much/a few/a little) days in Rome. (Анна провела несколько дней в Риме.)
8. I’d like just … (much/a few/a little) tea. (Я бы хотел лишь немного чая.)
9. There was very … (little/few/many) rain last autumn. (Прошлой осенью было очень мало дождей.)
10. Very … (few/little/much) Russian tourists are staying at our hotel. (Очень мало русских туристов проживает в нашем отеле.)