Предмет: Математика, автор: evza

Задача:
Периметр треугольника равен 40см. Первая сторона на 2см длиннее второй, а третья длиннее первой. Найди длину каждой стороны треугольника. 

Ответы

Автор ответа: triolana
0
вторая сторона х
первая х+2
третья сторона х+2+3=х+5
периметр 40
составим уравнение
х+х+2+х+5=40
3х=40-2-5
3х=33
х=33:3
х=11 см вторая сторона
11+2=13 см первая сторона
13+3=16 см
====================

Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Қазақ тiлi, автор: tokabaevarustan
бару деген созды тауелдеу пж срочна​
6 лет назад
Предмет: Английский язык, автор: tamaramanahova66
My household chores
I think nobody likes it when his house is in a mess. Doing household chores and keeping the house clean and cozy are necessary in every flat.
My parents work hard and they get rather tired after work. So it goes without saying that they don't have to manage all the housework and I have to
Everyone in our family has some household chores. But frankly speaking | must admit that my mother does the majority of the housework. Some thi
done every day, others need to be done once or twice a week (like watering the plants).
My daily chores are making my bed, washing up, tidying my room in the evening, cleaning my shoes and taking out the rubbish. This is my usual rou
pick up my little sister from the kindergarten. Fortunately I don't have to cook any food because my mum and granny do that and they really enjoy
sometimes help them and serve the table. Once or twice a week my mother asks me to go shopping to the nearest food supermarket. I usually buy
milk, fruits and vegetables.
Once a week, on Sundays my parents give the flat a big cleaning. There is a lot of work to do: dusting the furniture, ironing the clothes, mopping the
out the bathroom and the kitchen. I am busy with vacuum-cleaning the carpets in our bedrooms and cleaning the mirrors.
I don't consider my household chores difficult and I can cope with them easily, but sometimes I feel a bit lazy or I may be too busy with my school
Task 1: Answer the questions:
1. What does everyone in author's family have?
2. Who has the majority of the housework in his family?
3. What household chores does the author have?
ответить на вопросы срочнооооо оченьььь​
6 лет назад
Предмет: Биология, автор: danillkurkin
докажите что клубень-видоизмененный подземный побег. срочно даю 35 балов
6 лет назад
Предмет: Химия, автор: Аноним
в какой массе CaBr2 содержится столько же атомов брома как и в 20 г KB
     в какой массе пропана C3H8 масса атомов углерода такая же КАК И В 4 Г МЕТАНА CH4
9 лет назад
Предмет: Алгебра, автор: spunky00

В треугольнике ABC угол С=90градусов, угол A=20 градусов, BC=4.

Вычислите сторону AB

 

 

 

 

 

 
9 лет назад