Предмет: Математика, автор: suxari

Света купила 6м50см тесьмы а настя на 4м меньше.Сколько денег заплатила каждая девочка если они вместе потратили на покупку 7р 20к?                        В магазин привезли коробки конфет по450г в каждой и столько же коробок зефира по 300г в каждой .сколько килограммов зефира привезли в магазин если коробки с конфетами весили 67кг500г?

Ответы

Автор ответа: bart95
0

сколько всего тесьмы они купили: 6,5 м.+(6,5-4)м=9м

если 7 руб. 20 коп. это 720 коп. тогда на 1 метр тесьмы приходться 80 коп. значит света потратила 80 коп.*6.5=520 коп.(5 руб. 20 коп.), а Настя потратила 80коп.*2,5=200коп.(2 руб.)

 

сначала вычислим кол-во коробок с конфетами: 67500 г делим на 450 г и получается 150 коробок конфет, но по условию задачи коробок земфира стоько же, и поэтому умножаем 150 на 300 грамм и получается 45000 грамм или 45 кг!

Похожие вопросы
Предмет: Английский язык, автор: vfjcfhjy
Предмет: Английский язык, автор: Sonicofan9
How much physical activity do you think a young person needs to stay healthy? Read and check your answers.



PHYSICAL ACTIVITY

What are the activity intensity levels?

When you take part in a low-intensity activity, you do not sweat and your breathing is not affected greatly.

Moderate-intensity activities should make you sweat and your heart beat faster. You cannot sing, but you can continue talking.

As for high-intensity activities, you start to sweat sooner and cannot talk without getting out of breath.

Physical activity is any activity where you move your body and burn energy. There are many benefits of being physically active. Firstly, exercise stops you from becoming overweight, and this

is important because keeping a healthy weight lowers your risk of developing certain illnesses in the future.

What is more, when you work out, play a sport or even just go for a walk, the muscles and bones in your body become stronger. Because your heart is a muscle too, physical activity can keep it strong and healthy. You definitely want it to be strong enough to send blood and oxygen around your body!

We should all take part in physical activity regularly. According to the World Health Organisation, young people aged between 5 and 17 should do about 60 minutes of moderate to high-intensity physical activity daily to keep their heart healthy and to stay fit. This does not have to be done all at once but can be done throughout the day.

Other benefits of physical activity and exercise are:

• better memory

• less stress

• more energy

• better sleep

• a chance to make new friends

• a break from homework



Read again and answer the questions.

1. What could an unhealthy weight lead to?

2. How does physical activity benefit our muscles and bones?

3. What does our heart do?

4. How are low-intensity and moderate-intensity activities different?

5. How does a person feel during a high-intensity activity?​