Найдите число ,если 30 процентов от него равны 3(2 корень из 75- корень из 27)/ корень из 3
У выражение
3(2*корень(75)-корень(27))/корень(3) =3(2*корень(25*3)-корень(9*3))/корень(3) =
=3(2*5*корень(3) -3*корень(3))/корень(3) =3*(10-3) =3*7=21
Полученное число - это 30% от исходного числа.
Пусть х - это само число -100%.
Составим пропорцию
21 - 30%
х - 100%
х =21*100/30 = 70
Поэтому исходное число равно 70
ответ: 70
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Healthy habits
Healthy habits

We like jogging in the park.
Jogging is running at a slow, steady pace.
Unhealthy habits

He spends too much time watching TV.

I sleep eight hours.

Sam sleeps only five hours.

I do fitness in the gym.

Sam plays video games too much.

I eat only healthy food.

Ted eats fast food.
Some tips for healthy habits.
1.Visit the dentist twice a year.
2.Brush your teeth twice a day.
3. Be active. Don’t be a couch potato.

A couch potato is a person who takes little or no exercise and watches a lot of television.
4.Spend a lot of time outdoors.
5.Don’t eat before going to bed.
6.Eat dairy products (milk, yogurt, butter, cheese, cream) every day.
How to write a good story? Sentence starters will help you write a story.
One day ………
Last week.., Yesterday ..…
On a……….day
Once upon a time..
sentence starters to begin introduction
I think……is…because……
There are many reasons why……
Firstly, Secondly, Thirdly……
In addition……
sentence starters to write the details
Now you know why………is…
As you can see……
Finally……………
In conclusion……….
sentence starters to conclude writing
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