Предмет: Алгебра, автор: 48521

Блокнот стоит в три раза дешевле книги и на 1500р дороже линейки, а вместе они стоят 13500р. На 20тыс руб блокнотов можно купить....?

Ответы

Автор ответа: 111Slipknot111
0
Пусть х рублей - стоимость блокнота, тогда книга стоит 3х рублей, а линейка (х - 1500) рублей, зная, что вместе они стоят 13500 рублей, составим уравнение:
х + 3х + х - 1500 = 13500
5х = 13500 + 1500
5х = 15000
х = 15000 : 5
х = 3000 (рублей) - стоит один блокнот.
2) 20000 : 3000 = 6 блокнотов можно купить на 20000 рублей, и останется сдача 2000 рублей.
Ответ: 6 блокнотов.
Автор ответа: 111Slipknot111
0
отметьте лучшим, пожалуйста)))
Автор ответа: 48521
0
немогу тут только одно решение
Автор ответа: 111Slipknot111
0
потом появится позже, отметите, хорошо?
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Sem. 1 Reading Test
1 Read the text
I’ve got a penfriend Tim. He lives in Cambridge. He is eleven years old
and he goes to school for boys. His family is big. His father is tall and thin. He
has got short straight hair and he wears glasses. Tim’s father is a doctor. He
is clever, helpful and hard-working. He likes sport and plays football and tennis. Tim’s mother is a very beautiful woman. She has got long curly hair and big blue eyes. She is romantic and likes flowers and animals. Tim has got two younger sisters — twins. They are lovely girls with long straight hair. They usually wear their hair in braids. They are only five and they don’t go to school.
Tim’s grandmother is very kind. She likes cooking very much.

2 Read the text and answer.
1) Who is kind? —
2) Who is clever and helpful? —
3) Who is romantic? —
4) Who wears glasses? —
5) Who likes animals? —
6) Who goes to school? —
7) Who doesn’t go to school? —
8) Who likes cooking? —

3 Circle the correct answer.
1) At lessons of … pupils learn about continents, countries, mountains and rivers.
a) History b) Geography c) Science
2) At … lessons pupils learn new words and dialogues, read, write and play
games.
a) English b) Maths c) Art
3) At lessons of … pupils learn about plants and animals and do some experiments.
a) IT b) Science c) Biology
4) At … lessons pupils run, jump, play football and other games.
a) Music b) IT c) PE

4 Make up a dialogue.

— I like skiing and tennis.
— What kinds of sport are you fond of, Sam?
1 — Do you like sports, Sam?
— Yes, I am. I visit the Tennis Club three times
a week. And how often do you do judo?