Предмет: Алгебра, автор: vika3008

1.Под строительную площадку отвели участок прямоугольной формы.при утверждении плана застройки его длину и ширину увеличили на 20%,на сколько процентов увеличилась площадь участка после утверждения плана застройки?
2.комната имеет форму прямоугольного параллелепипеда.ее длина и ширина равны 3м и 6м соответственно,высота потолка равна 3м.ширина дверного проема комнаты равна 1м,высота 2м.в комнате два одинаковых квадратных окна шириной 1,5м каждое.для оклейки комнаты обоями необходимо купить их с запасом в 10% от отклеиваемой площади.сколько рулонов обоев нужно купить,если площадь одного рулона равна 5 кв.м и рулоны продаются только целиком?

Ответы

Автор ответа: 159987y
0
10*10=100 12*12=144 144-100=44% 2 (3*3+3*3+6*3+6*3-2*1-1.5*1.5-1,5*1,5)/5*1.1=10.45~11 Ответ :1 44% ;2 11
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1.Gold is similar …… color to brass.

A) At

B) By

C) To

D) In

E) With

2. She used to go shopping …… Sunday morning.

A) With

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C) On

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C) to wear

D) worn

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A) are

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10. Summer holidays usually _____ in June.

A) begun

B) begins

C) beginning

D) began

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Sundays.

A) play / play

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C) play / plays

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A) do / our

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A) plays

B) played

C) play

D) playing

E) did play

14. She likes _____ TV, but her husband doesn’t.

A) watched

B) to watch

C) watches

D)watching

E) do watch

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A) to reading

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A) did / do

B) does / do

C) are / do

D) do / are

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B: A nurse.

A) do / do

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D) work / *

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40. A: _____ languages do they speak?

B: Just one.

A) How

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