Предмет: Математика, автор: pacamaxa86

Моторная лодка прошла по течению реки на 1 км больше, чем против течения реки; при этом затратив на путь по течению реки на 10 минут меньше, чем на путь против течения. Найдите путь, пройденный лодкой против течения реки, если собственная скорость лодки равна 11 км/ч, а скорость течения реки – 1 км/ч.

Ответы

Автор ответа: Аноним
0
хкм-по течению,скорость 11+1=12км/ч,время х/12ч
х-1км-против течения,скорость 11-1=10км/ч,время (х-1)/10ч
(х-1)/10-х/12=1/6
6х-6-5х=10
х=16км по течению
16-1=15км против течения
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Предмет: Английский язык, автор: yerasyl7777
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1)Write a proper noun for each of the common nouns.
Common Nouns :
1. river
2. dog
3. airport
4. school
5. store
6. teacher
7. song
8. month
9. church
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Collective NounsFill in the blanks with the correct collective nouns.
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4. A group of trees.________
5. The teacher is teaching a of children. ________
6. The shepherd has a ______ of sheep.
7. The___________ оf soldiers ran around the field.
8. We were chased by a ________ of wolves.
9. David's cat has a _______ of kittens.
10. Daddy bought mummy a _________ of flowers.
Nouns
Choose a suitable answer for each of the following sentences.
1. Shelly works as a programmer at Microsoft. The word Microsoft is a
a. Proper noun
b. Plural noun
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2. Which statement is the best definition for common noun?
a. Any word that describes.
b. Any word that shows action.
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3. What do we call the words in bracket? I read an interesting mystery story from the (Nancy Drew) series.
a. Common nouns
b. Singular nouns
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4. Which is correct? I have a medical appointment on Tuesday with
a. dr. barns
b. Dr. Barns
c. Dr. barns

5. Which group has only common nouns?
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b. Bowl, Wednesday, Anancy, dinner c. flowers, door, yam, bowl

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a. Student
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7. parents usually stay at home on Sundays.
a. I
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c. Me

8. The is near the swimming complex.
a. beautiful
b. calm
c. cinema

9. The is wearing a lovely red hat.

a. wave
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c. lady in music class.

10.My sister plays the
a. violin
b. hopscotch
c. card games

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