Предмет: Математика, автор: SmailDz

Длина аквариума 3 дм, а ширина
25 см. Когда в аквариум налили
7,5 литров воды, он оказался
заполненным на половину. Найдите
высоту аквариума.

Ответы

Автор ответа: SanyPro
0
3*2,5 = 7,5 дм2 - площадь аквариума
7,5/7,5*2=1*2=2 дм=20см 
Ответ: 20см
Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Другие предметы, автор: sashazdr
«Усі вони.. були плоскогруді й прямокутні, з руками й ногами по краєчках... розцяцьковані з голови до п‘ят бубнами..» Це портрет:
а)усіх персонажів повісті-казки про Алісу;
б) мальованих кроликів;
в) королівського почту;
г) крокетистів
Зарубіжна, 5 клас
6 лет назад
Предмет: Информатика, автор: nyaanime296
Плиз помогите одам 10 баллов ​
6 лет назад
Предмет: Английский язык, автор: callmekaribskiy
Complete these sentences to make mixed conditional sentences, using the correct form of the verb in brackets. I’m really enjoying the party. If you_____ (invite) me, I wouldn’t be here now. You have spent so much money! If you_____ (not spend) so much money, I_____ (not/be angry) now. If she were not arguing with her boss all the time, she_____ (get) promoted last year. If John_____ (be) self-confident,he_____ (go) into business when Sam offered him partnership. If Maggie _____ (be) more thoughtful, she_____ (not/take) that great risk that cost her a career. Mark failed the exams. If he_____ (study) harder, _____ (be) a student of the University now. He lost his job. If he _____ (not/lose),he wouldn’t be unemployed now. She doesn’t know French, that’s why she didn’t have good time in Paris. If she knew French, she_____ (have) good time in Paris. Tom is never careful, he crashed his car into a wall. If he were careful, he_____ (crash) his car into a wall. If I were you, I_____ (make) Paula to take a warmer jacket. It’s not your first visit to the mountains. Complete these sentences to make wishes about the present and the past, using the correct form of the verb in brackets. I wish I_____ (buy) that blouse I saw yesterday at the department store. I’m tired of this cold weather. I wish I _____ (fly) to some warm country at the moment. I wish I_____ (save) some money last month. He doesn’t work very hard. I wish he_____ (work) much harder. I wish I_____ (shout) at the children like that, but they were so naughty. I’m afraid that we will miss our bus. I wish we_____ (leave) earlier. The weather is awful. I wish I_____ (put on) something warm. I’m really cold now. I wish I _____ (be) at school again. Those were great days! We wish we_____ (know) how to solve the urgent problem of terrorism. When we grow older, we all wish that we_____ (spend) our time at school more effectively.
6 лет назад
Предмет: Алгебра, автор: klimenkol21
Помогите!
Упростите выражение:
-2а(3а-в)-8в(4а+3в)
при а=0,1 в= -0,2
9 лет назад
Предмет: Алгебра, автор: klimenkol21
Помогите!
Найдите значение:
-1,5х(-х/3-2)
9 лет назад