Предмет: Математика, автор: BIGH12

Решите уравнение
0,6(х+7)-0,5(х-3)=6,8
Объясните как его решать!

Ответы

Автор ответа: julyap
0
0.6(x+7)-0.5(x-3)=6.8 \ 0.6x+4.2-0.5x+1.5=6.8 \ 0.6x-0.5x=6.8-4.2-1.5 \ 0.1x=1.1\x=11
Автор ответа: Montale
0
0,6(x+7)-0,5(x-3)=6,8
0,6x+4,2-0,5x+1,5=6,8
0,1x=6,8-1,5-4,2
0,1x=1,1
x=1,1:0,1
х=11

Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Химия, автор: kassumi

Помогите пожалуйста
7 лет назад
Предмет: Українська література, автор: mavrasad
9. Яка ідея балади «Тополя»
а) невмирущість справжнього кохання та вірності
б) відданість своїй державі
в) складність стосунків батьків та дітей
г) необхідність гармонії людини з природою
7 лет назад
Предмет: Английский язык, автор: zapsasolme
№1. fossil fuels, footpath, special offer, unpredictable, extinct, global warming, youth, freezing, competitors, rise

1. There’s a __________ on flights to France this month.

2. It’s ________ cold today.

3. The burning of ________ produces carbon dioxide.

4. The weather is __________. You never know what to wear.

5. Many animals may become _______.

6. ________ is causing ice to melt and temperatures to ______ .

7. One of the _______ broke his leg in the wok racing.

8. We stayed in ______ hostel for a week.

9. Follow the __________ and you will find the camp.



№2. Choose the preposition.

1. Many animals are in/ under threat.

2. They adapted to/ in the dark conditions.

3. He was singing loudly to scare by/ off bears.

4. Wear more clothes instead of turning off/ up the heat.

5. They warned me about/ of his bad behavior.


№3. Word formation. Fill in the correct word derived from the words in CAPITALS.

1. Extreme sports like roofing are ___________. (DANGER)

2. She looks ________ . (ATHLETE)

3. The salad is very ________ . (SALT)

4. This hotel is very _______. (EXPENSE)

5. Enjoy this ____ beauty. (NATURE)

6. Scientists say robots could be rather ____ in the future. (FUNCTION)

7. I like to travel with him by car. He is a very _____ driver. (CARE)

8. The sofa looks _______. I’d like to buy it. (COMFORT)

9. I’m _____ to oranges. That’s why I avoid eating them. (ALLERGY)



№4. Choose the correct item.

1. I promise I ____ to the library after school.

a) am going b) will go c) go

2. Tom _____ on a trip this weekend.

a) going to go b) is going c) goes

3. My train _______ at 9:00 tomorrow.

a) leaves b) will leave c) is leaving

4. We _____ dinner at a restaurant at 7p.m. I booked a table yesterday.

a) have b) will have c) are having

5. Don’t worry. I _____ you to do the task.

a) help b) am helping c) will help

6. If you heat water, it ______

a) boils b) will boil c) boil

7. If you study hard, you ____ the exam.

a) would pass b) would have passed c) will pass



№5. Communication. Match 1-6 to A-F.

1. How can I help you?
2. Can I book it, please?

3. Does that include breakfast?

4. How much is it per night?

5. How about joining me for a game?

6. We look forward to seeing you.

A. Thank you. Goodbye.

B. It’s 100 $

C. I’d like to book a room, please.

D. Sure, I’d love to!

E. Certainly. When for?

F. No, I’m sorry.
7 лет назад
Предмет: Физика, автор: smurfic
В катушке, состоящей из 100 витков протекает электрический ток, изменяющийся по закону I=I(нулевое) * sin(t). Определить ЭДС самоиндукции, возникающую в катушке, если известно, что I(нулевое)=10 А, длина катушки L=100 см, а радиус катушки r=1 см.
10 лет назад
Предмет: Геометрия, автор: Аноним
На отрезке АВ взяты точки М и N. Известно,что АВ=12 см, АМ=8 см, ВN 10 см.
Найдите длину отрезка МN.
10 лет назад