Предмет: Алгебра, автор: gesidife

Одна сторона треугольника на 9 см меньше второй и в 2 раза меньше третьей. Найдите стороны треугольника,если его периметер равен 105 см

Ответы

Автор ответа: аркадийзалупович

x+x-9+2x=105
4x=114/4
x=28,5

Автор ответа: galina801

Х - первая сторона треугольника
Х+9 вторая
2х третья
Составляем уравнение
Х+(Х+9)+2х=105
4х=96
Х=24 первая
24+9=33 вторая
24•2=48 третья

Предыдущий вопрос

Следующий вопрос

Интересные вопросы

Предмет: Английский язык, автор: toxopic254

ДАМ 25 БАЛЛОВ
Помогите сделать английский 10 класс
Задание написано в фото

6 лет назад

Предмет: Английский язык, автор: Аноним

B. Put a few or a little in each empty space in these sentences,
1. Mac drove ... kilometres. Then his car stopped.
2. He had ... money in his pocket for a bus.
3. He waited for ... minutes. Then a bus came.
4. It was ... slower than his car, but he got to a garage.
5. The man in the garage said to him, 'Wait...!
6. Then he drove bien back to his car with ... things in a bag.
7. He did... work on the car, and then the engine began
running
& Mac gave the mas.. pounds and then drove on to
Bournemouth
PS
C. Write these sentences. Choose the correct worde.
1. This man is
done
* mistake.
doing
making
#wall, but he has
What is he going in
do
make
Nor the other masia
Mac had a very old car. It was rusty and dirty, but its
engine worked most of the time. One day he took his old
car out of the garage and said to his wife, I'm going to
drive to Bournemouth and do some shopping.'
He came to a quiet road after a few kilometres, but then
his car stopped. Mac got out, opened the bonnet of the car
and looked at the engine, but he did not find anything
wrong with it.
His head was under the bonnet for quite a long time.
Then a young man ran to the car and began pulling one of
the red lights off the back of it.
Mac put his head up, looked at the young man and
shouted, 'What are you doing there?
The young man answered, 'You can steal the pieces at
the front. I'm going to take the ones at the back!
Words not in the 750: bonnet, rusty
doing
a fire, and his wife is
ang to
make
4. What are they
How? They are drinking their tea,
and test malli
making
hla homework
22

6 лет назад

Предмет: Українська мова, автор: svitlanaaristarhova4

провідміняйте числівник двісті сорок шість пажалуста даю 100б

6 лет назад

Предмет: Математика, автор: koshelya78

У саду посадили 20 слив яблунь у 5 разів менше ніж слив а вишень у4 рази менше ніж слив і яблунь разом.скільки вишень посадили?ЗАПИСАТИ РОЗВ'ЯЗАННЯ ОДНИМ ВИРАЗОМ!

9 лет назад

Предмет: Литература, автор: anonim10

"человек и природа" придумайте заключения

9 лет назад