Предмет: Математика, автор: EraliMuratov20

Реши задачу. В магазине продали одинаковое количество конвертов и открыток. Открытка стоит 50 тенге, а конверт 30 тенге. 3а все проданные конверты и открытки выручили 1600 тенге. Сколько денег выручили ща конверты и открытки по отдельности.
Помогите пжжж

Ответы

Автор ответа: kate856

1600:(50+30)=20—за один из товаров
20•30=600—за конверты
20•50=1000—за открытки.

EraliMuratov20: спс

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Алгебра, автор: aissst10

Если х принадлежит AUB, то х принадлежит А.?

6 лет назад

Предмет: Английский язык, автор: stepan20077

ДАЮ 50 БАЛЛОВ We all know how important it is to protect the environment. But sometimes it's difficult for us to do the right thing. But did you know that making a few simple changes to your driving habits will not only do less damage to our world but will also save you money and could even be good for your health?

Do you really need to take the car? Try making more use of public transport. If the service is reliable you'll soon get used to using buses and trains. In fact, for shorter journeys why not take the opportunity to get into shape and go on foot.

Why not share the journey! How often do you see cars with just one occupant with the driver making the same journey as others living nearby? Why not car share and half the cost of the journey? There are websites where people can arrange to meet up.

Try changing your habits. When you must use the car, plan your journey so you can go to all the places you need to visit rather than taking the car out again and again. If you get caught in a traffic jam, switch off the engine when you're stationary for a long time. Try not to brake too sharply or accelerate too quickly as this will lead to you using up more fuel.

Taking care of your car is very important. Make sure you carry out basic maintenance like checking the tyre pressure regularly. And keep your car regularly serviced so that it runs as efficiently as possible.

Steps like this will save you money and help you do your bit to protect the environment.

1. In paragraph 1 it is said that to save the planet, you should...

change the way you use your car.

spend less money.

take care of your health.

inderstand that it's important.

2. How can walking influence you?

It can help you save money.

It can help you avoid public transport.

It can help you find good opportunities.

It can help you keep fit.

3. When people share the journey, they ...

drive together somewhere in the same car.

drive to the same place in different cars.

plan where they will travel together.

talk about their travels.

4. If you want to use less fuel, try ...

not to use your car too often.

not to speed up too quickly.

to brake sharply.

to change your car.

5. What does the writer advise you in paragraph 5?

to check your pressure

to take care of yourself

to get your car checked

to repair your car yourself

6 лет назад

Предмет: Математика, автор: darinakosaman

1-(1-6) помогите пожалуйста

6 лет назад

Предмет: Математика, автор: Konnova22

0,9 от 30% числа k равны 5,4 . Найдите число k.

10 лет назад

Предмет: Алгебра, автор: kerill753

Решите уравнение по формуле корней и сделайте проверку по теореме обратной теореме Виета x^2-6x+55=0

10 лет назад