Предмет: Математика, автор: licmanzlata111

Якщо середнє арифметичне двох чисел дорівнює 12,то сума цих чисел становить? ​

Ответы

Автор ответа: sofiaipro524
0

Відповідь:х+15/2=12, помножимо обидві частини рівняння на 2, тоді буде: х+15=24, х=9

Покрокове пояснення:

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ПОМОГИТЕ КОНТРОЛЬНАЯ 1. Выпишите  имена существительные во множественном числе:

girls, dogs, car, dolphin, beds, brothers.


2. Поставьте слова во множественное число:        

Cake-

hen –

toy -

fox–


3. .Переведите на русский язык.

Nick's brother goes to school.

Bob doesn't like this game.

Is his uncle a driver?


4. Составьте предложения.

His, a doctor, is, mother.

Do, want, you, to fly?

He, go, not, to school, does.


5. Напишите 2  и 3 форму глаголов:

have -


go -


come -

be -


do -


Bring  -

 

6. Reading

Прочитай текст.
                                         It Is Cold and Frosty Today
My name is Bess. Now I live in Russia and I like winter very much. I like winter sports and I want to be a good skater. I have got skates and my brother Nick teaches me to play hockey. He can play it very well. He plays hockey with his friends on the pond. I go with him to the pond and play with the boys.
They are good hockey players and hockey is a nice sport game. But I want to dance on the ice. I can dance a little but I can’t dance on the pond. The boys play hockey there. Today it is cold and frosty and the boys don’t want to go to the pond. So I can dance there with my friend Lucy. It is fun to be on the ice on a frosty day!

1.Выбери правильный вариант ответа.
1. Bess likes__________.
a) summer b) winter c) spring
2. Bess wants to __________.
a) be a hockey player b) play hockey with Lucy c) be a skater
3. Bess has got__________.
a) new skies b) a sister, Lucy c) a brother, Nick
4. Nick can__________ very well.
a) play football b) dance on the ice c) play hockey
5. In winter Nick and his friends go to__________ .
a) the pond b) the stadium c) the swimming pool
6. Today it is frosty and Bess and Lucy__________.
a) don’t want to go to the pond b) want to dance c) want to play hockey
2.Составь из букв слова, обозначающие названия игр, и запиши их.
1. allbtoof - -
2. balleyvoll -
3. sinnet -
4. llabesba -
5. bdmntnaio -
6. atg -​