Предмет: Математика, автор: adonecz2014

как решить задачу В двух секциях занимаются 80 учащихся. В первой секции занимается ? в 3 раза меньше учащихся, чем во второй. Сколько учащихся занимается в каждой секции?

Ответы

Автор ответа: Artem389

Пусть x учеников учатся во 2 секции, тогда в первой 3x.
x+3x=80
4x=80
x=80/4
x=20
20*3=60
Ответ: в первой секции 60 учеников а во второй 20.

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The Lomonosov Moscow State University

One of the oldest Russian institutions of higher education, Moscow State University was established in 1755. In 1940 it was named after Academician Mikhail Lomonosov (1711 - 1765), an outstanding Russian scientist, who greatly contributed to the establishment of the university in Moscow.
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The head of a university is Rector. Each faculty has a number of specialized departments and is headed by dean. As training highly qualified specialists has always been the main goal, the faculties and departments constantly revise their curricula and introduce new programs. A number of faculties offer 4-year Bachelor’s and 2-year Master’s Degree programs, together with traditional 5-year Specialist Degree programs. Currently the stress is on student's ability to work independently and meet employer's requirements, thus practical experience in the field being of foremost importance.
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Moscow University campus is an extremely complex system, with its 1,000,000 m2 floor area in 1,000 old and new buildings and structures with its 8 dormitories housing over 12,000 students and 300 km of utility lines.
There are many various laboratories. There is a very good library and a computer centre in the main building. MSU library system is one of the largest in Russia, with its 9,000,000 books, 2,000,000 of them in foreign languages, and the average number of readers 55,000, using 5,500,000 books a year. Every faculty has its own specialized library, laboratories, work-shops and computer centres.
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