Предмет: Математика, автор: Aleks119

помогите решить зажачу

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muceniceag: Фигасе , задачки для будущих мажориков? Лол

Ответы

Автор ответа: prettypushkova
1
                     Цена              Количество       Стоимость
Стул          одинаковая             3 шт.                  ?     
Полка         одинаковая             5 шт.         ? на 180 000 руб. больше 
3 стула + 5 полок  .....................................   720 000 руб.
----------------------------------------------------------------------------------------------------------
1) 5 - 3 = 2 (шт.) - купили на две полки больше;
2) 180 000 : 2 = 90 000 (руб.) - цена полки;
3) 90 000 * 3 = 270 000 (руб.) - заплатили за 3 стула;
4) 90 000 * 5 = 450 000 (руб.) - заплатили за 5 полок.
Ответ: 270 000 руб. заплатили за стулья и 450 000 руб. заплатили за полки.
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Ex.6. Fill in the blanks with the prepositions if necessary.
1) ___ graduation ___ Railway Academy he worked as a railway dispatcher ___ a large
terminal. 2) In Britain students' grants depend ___ the income ___ their parents. 3) The washing
machine is provided ___ the instruction on how to operate it. 4) By 1913 the railway network of
Russia consisted ___ 25 state lines and 13 private lines belonging ___ different companies. 5) I was
included ___ the list ___ speakers ___ the conference. 6) If the student misses ___ a lecture or is late
___ a seminar he has to inform the monitor ___ the group for the reason. 7) Will you wait ___ me after
the lessons? 8) The new high speed railway line will be put ___ operation ___ a week. 9) What
subjects are you strong ___? 10) Great attention is paid ___ ecological problems all over the world.
11) When I entered ___ the Institute I knew very little ___ the history ___ its foundation. 12) Our
automobile is equipped ___ radio communication and audio signaling. 13) Students ___ technical
institutes have practical training ___ various enterprises. 14) Now the Trans-Siberian Mainline is
divided ___ six railways in the Urals, Siberia and the Far East. 15) He speaks ___ a number of
foreign languages. 16) The scholarship provided me ___ my first opportunity to travel overseas.
17) Water consists ___ hydrogen and oxygen.

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