Предмет: Алгебра, автор: lyalyushkina5

Масса 21 литра состовляет 16,8 кг.Какова масса 35 литра нефти?

Ответы

Автор ответа: nafanya2014

21 л - 16,8 кг
35 л - х

Составляем пропорцию
21:16,8=35: х
Произведение крайних членов пропорции равно произведению средних
35·16,8=21х
588=21х
х=588:21
х=28 кг

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: Аноним

GRAMMAR QUIZ
AND BUT SO BECAUSE
Complete these sixteen sentences to score your knowledge of AND, BUT, SO, and BECAUSE
1. I was late for class this morning ... 9. My bedroom was very cold ... I forgot
the bus was late.
to close the window.
a) so
a) because
b) because
b) so
c) but
c) but
2. I usually go home at four o'clock, 10. First we drove to the airport, ... then
... then I watch TV for an hour.
we got on the plane.
a) and
a) but
b) because
b) because
c) so
c) and
3. My classmate studies very hard, ... 11. It's raining outside, - you should
she always gets good grades.
take your umbrella.
a) because
a) but
b) but
b) because
c) so
c) So
4. Thomas was really hungry this 12. I don't feel very well, ... I think I'll go
morning ... he didn't eat breakfast. to see a doctor.
a) but
a) but
b) so
b) so
c) because
c) because
5. We went to the airport, ... we forgot 13. Sarah called her friend, ... nobody
to bring our suitcases.
answered the phone.
a) but
a) so
b) so
b) because
c) because
c) but
6. Cathy decided to order spaghetti, ... 14. I saw my teacher this morning, ... 1
Gary decided to order a pizza.
asked him about the test.
a) so
a) and
b) and
b) but
c) because
c) because
7. I was very sick yesterday, ... I didn't 15. They felt very bored, ... they turned
go to work
on the TV and watched a movie
a) because
a) but
b) so
b) so
c) but
c) because
8. I fell off my bicycle ...
. I wasn't 16. I fell off my bicycle, ... I didn't get
careful.
hurt.
a) because
a) so
b) so
b) but
c) and
c) because
15 - 16 - Excellent
13 - 14 = Good
12 or Less = Study More!

6 лет назад

Предмет: Биология, автор: Dima5677

в організмі людини здебільшого не виробляються
А Ферменти, Б гормони, В вітаміни

6 лет назад

Предмет: Английский язык, автор: Аноним

комектесип жибериниздерши

6 лет назад

Предмет: История, автор: Ksushaa26

Помогите, пожалуйста, со 2 заданием

9 лет назад

Предмет: Математика, автор: asasha01

3/5 от числа 12 составляет 1/4 неизвестного числа.Найдите это число!

9 лет назад