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решение задачи на трех полках стоят книги на первой полке 1 4
книг на второй полке 40% всех книг на третьей полке 28 книг Сколько книг стоит на трех полках-
Предмет:
Математика -
Автор:
karterjfvv - 5 лет назад
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Ответы 1
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Х всех книгХ-1/4х-0,4х=283/4х-2/5х=2815/20х-8/20х=287/20х=28Х=28/1*20/7Х=80 книг всего
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Автор:
amber - 5 лет назад
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0
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ПОМОГИТЕ С ПЕРЕВОДОМ, ПОЖАЛУЙСТА
It's hardly possible to make a profit out of the high arts, just as it's impossible to make a profit out of a hospital or a university. But one can try to ensure they don't lose money. I help the arts because they serve to make us more humane, more civilised and wealthier. 1 don't like loud statements, I like doing something specific to show what one can do for others."2. With a great number of telephone users, Russia's leading telecom operators now face the problem of market situation. The problem is further worsened by the fact that the potential for price reductions is very limited, and the service has become affordable to broad masses in the country.3. A collection called "White Irises" brought victory to Helena Venedictova of Omsk at the Russian final of the Smirnoff International Fashion Awards 2001. Now she will represent Russia at the International finals to be held in Toronto this November. "I'll try hard to win in Toronto , " Venedictova said.4. Certainly, medical officials should take some action against even the possible outbreak of anthrax in Russia. We need additional border controls and any other strict measures that would be effective. We need to be prepared for any letters with anthrax that might come from abroad. Still, I d o n ' t think it's time to panic. I hope there are specialists in Russia who are ready to handle any situation that might occur here. J"5. Second Moscow International Festival of poetry, which took place in a number of the city's museums and artcaf clubs lasted from October, 16 through October, 20 and unexpectedly turned out to be, if anything, too successful.-
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