Предмет: Математика, автор: malutaolga

Натиск к каждой задаче схему
1 МАШИНА ПРОХОДИТ ЗА 1 ЧАС 38 КМ.2 43 КМ.МАШИНЫ ВЫШЛИ ОДНОВРЕМЕННО ИЗ ЗМЕЁВКИ.ОДНА НАПРАВЛЯЛАЬ В ЦВЕТОЧНЫЙ ГОРОД. ДРУГАЯ В СОЛНЕЧНЫЙ.КАКОЕ РАССТОЯНИЕ БУДЕТ МЕЖДУ МАШИНАМИ ЧЕРЕЗ ЧАС ПОСЛЕ НАЧАЛА ДВИЖЕНИЯ?
а) Растояние от Змееловки до Зелёного города первая машина проходит за час.каково это растояние ?б)Зелёный город находится на полпути от Цветочного до Змееловки.каково растояниемежду Цветочным городом и Змееловкой ?в)растояние между Зелёным городом и Земляным 46 км.Каково растояние между Змеловкой и Земляным городом ?г)Змееловка находится на полпути от Цветочного города до Солнечного.Каково растояние от Земляного города до Солнечного?

Ответы

Автор ответа: xxxeol

1. Машины едут в противоположные стороны - совместная скорость равна сумме.
Vc = V1 + V2 = 38 + 43 = 81 км/ч - их скорость.
расстояние через 1 час
d = Vc * t = 81*1 = 81 км - ОТВЕТ - рисунок 1
Другие расчеты и рисунки в приложении.

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A could

B must

C have to

D may

E should

№ 2 задание It’s strange that they ..… be late.

А must

B should

C could

D would

E may

№ 3 задание Sue ….. be able to help them.

А might

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№ 4 задание I recommend you to apologize. You ..… apologize.

А would

B should

C must

D shall

E could

№ 5 задание Take an umbrella. It ..… rain later.

А might

B should

C would

D can

E shall

№ 6 задание We haven’t got much time. We ….. hurry.

А must

B needn’t

C can

D should

E might

№ 7 задание The situation was bad but it ….. worse.

А could

B should be

C could have been

D would have been

E -

№ 8 задание I ….. to work today.

А must

B should

C could

D have

E may

№ 9 задание If you want to become a teacher, you ….. go to teachers training college for four years.

А may

B should

C have to

D must

E could

№ 10 задание Lisa ..… get bored in her job. Her job is so boring.

А must

B should

C would

D can’t

E may

№ 11 задание She never thinks ______ herself.

А about

B on

C at

D from

E in

№ 12 задание She ____ play the piano.

А can

B do can

C does can

D can to

E could

№ 13 задание Where were you born? I ________ in Madrid.

А was born

B were born

C was borne

D am born

E born

№ 14 задание I bought ___ apple and ____ grapes.

А an, some

B a, some

C an, _____

D an, the

E the, the

№ 15 задание Her brother is ______ than me.

А taller

B more tall

C tallest

D more taller

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№ 16 задание She ______ a new computer. What luck!

А has got

B have got

C got

D does has

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№ 17 задание Is Father busy now? Yes, he _______ to the postman.

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D talking

E was talking

№ 18 задание When ________ to buy me a computer?

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B you are going

C are you going to

D you going

E are you go

№ 19 задание He ______ a new job recently.

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B found

C have found

D has find

E have find

№ 20 задание They ______ move to Manchester

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B have decided

C decided

D decided on to

E decide

№ 21 задание I'm looking ____ a job.

А for

B of

C with

D at

E on

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B tried

C tryed

D was trying

E try

№ 23 задание What ___ dirty place this beach is!

А ___

B a

C an

D the

E this

№ 24 задание A: There's something at the door. B: I ______ it!

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B am going to get

C get

D got

E getting

№ 25 задание I ______ work late last Tuesday.

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B must

C must to

D could

E can

№ 26 задание When I _____ this book, I will give it to you.

А read

B have readed

C have read

D will read

E reads

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А didn't use to

B use to

C were use to

D weren't use to

E used to

№ 28 задание She _______ very much shocked by the accident.

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B wasn't

C wouldn't

D shouldn't

E musn`t

№ 29 задание If I ____ more time, I would build another website.

А would have

B have

C had

D would had

E would

№ 30 задание When we ______ at the post office, it had been already closed.

А arrive

B had arrived

C have arrived

D arrived

E arriving