1. 17x-8=20x+7
17x-20x=7+8
-3x=15
x=5
2. х кг- младший,
3х кг-старший,
(х+13) кг -средний.
Всего- 88 кг яблок.
х+3х+х+13=88
5х=88-13
5х=75
х=75:5
х=15(кг)- яблок собрал младший брат.
3. 0,6(х+2)+4,6=0,4(7+х)
0,6x + 1,2+4=2,8+0,4x
0,6x+5,2=2,8+0,4x
0,6x-0,4x=2,8-5,2
0,2x=-2,4
x=-12
4. Пусть х л воды было в каждой цистерне первоначально, тогда
(х-54) л воды стало в первой цистерне, а
(х-6) л воды стало во второй цистерне.
Т.К. в первой стало в 4 раза меньше, чем во второй, то составим уравнение: 4(х-54)=х-6, 4х-216-х+6+0; 3х=210; х=70
ответ: в цистернах было по 70л воды
5. (3x+42)(4.8-0.6x)=0
3x+42=0 4.8-0.6x=0
3x=-42 -0.6x=4.8
x=-14 x=-8
Вроде все правильно..
1. When he entered the room, he saw Anna where he had left her. 2. I noticed when I entered,
that someone left their umbrella on the porch. 3. He did not read half the book, as he stated that
he doesn't like her. 4. When the guests left, she went into the living room and turned off the light. 5.
She sat on the sofa and wondered why her father's letter hadn't arrived yet. 6. Rain
it had stopped, but there was still a slight mist in the air. 7. I didn't know when he left. 8. He
I didn't remember his name, and I didn't remember ever having met him before. 9. We
we drove about two hours when we finally saw the lake. 10. It was some time before
than they realized that he had nothing to say. 11. when he Arrived home, he found out that his
my sister just left. 12. When the expedition returned, they said that they
seen in the Arctic.13. She had finished packing by the time her sister
she knocked on the door. 14. The last days were very cold, but the snow was not.15. When
everyone left, she went to the phone and quickly dialed the number. 16. When the parents
when they came back, I showed them what I had done. 17. my Mother tried to calm me down after
after you left. 18. I was surprised at the progress she made, given how little
it had been a long time since I'd seen her.19. he did Not have time to go to the
doors, how I met my school friends. 20. He again returned to Moscow, where
I lived with my parents as a child. 21. When they finally parted, he returned to the room
and went straight to the table. 22. It was much colder than she had anticipated. 23. I
I knew they had met before the war. 24. When everyone was gone, I carefully closed the door
the door. 25. When dawn broke, still blowing a Gale, but the snow had stopped.
Объяснение:
III. vocabulary TYPES OF SHOPS AND DEPARTMENTS
a shop = a store (AE)
a shopping centre/center(AE) - a mall (AE)
a chain store
a supermarket
a department store
a stall = a stand (AE)
a kiosk
- dairy products
a butcher's/ a butcher shop
a grocer's/a grocery store (AE)
a baker's/ a bakery
a florist's
a fishmonger's
a confectioner's/a confectionery/ a sweet-shop
a greengrocer's/a greengrocery
an off-licence = a liquor store (AE)
a tobacconist's
a chemist's = a drugstore/a pharmacy (AE)
a newsagent's
a boutique
a gift shop
a bookshop = a bookstore (AE)
a hardware shop
an antique shop
- footwear
- perfumery & toiletries
- household goods
- hosiery
- souvenirs
- jewellery/ jewelry (AE)
a stationer's/ stationery
- electric appliances
- sportswear = sporting goods (AE)
- pottery (ceramics)
- glassware
- silverware
9 Do the crossword. Can You Recognise the Shops?
1) In this shop you can choose different sorts of glass containers for wine, cognac, brandy and other beverages. an off-licence = a liquor store (AE)
2) If you don't want to spend hours fishing, it's better for you to go to this shop. a fishmonger's
3) Kiwi, mango, peaches, avocados, parsley, lettuce: where do you go to buy all that? a greengrocer's/a greengrocery
4) Is your favorite pastime gardening? Then you will find all the tools you may possibly need at this shop. a hardware shop
5) Want to make a birthday cake? You'll find everything (or almost everything!) you need here! - household goods
6) Here you can buy sports newspapers for your dad, fashion magazines for your mom and some postcards to send to a friend. a newsagent's
7) If you are eager to read this year's #I bestseller you'd better drop in this shop, a bookshop = a bookstore (AE)
8) Why go hunting? You can buy pork, veal, lamb, beaf, mutton and more at this kind of shop. a butcher's/ a butcher shop
9) The shop where products that often cause lung cancer are sold. a tobacconist's
10) A very large shop. a shopping centre/center(AE) - a mall (AE)
11) You are planning to spend your Christmas holidays in the Alps skiing? Then go to this shop and get all the necessary gear. - sportswear = sporting goods (AE)
12) You can shop here only if you are of age. an off-licence = a liquor store (AE)
13) If you have a sweet tooth this shop is for you. a confectionery/ a sweet-shop
14) The shop where you buy medicines, baby products, shampoo, etc, a chemist's = a drugstore/a pharmacy (AE)