Предмет: Алгебра, автор: HiNoHi

Помогите,пожалуйста,с задачей на проценты.С объяснением,если можно.

Стоимость проезда в электричке составляет 117 рублей. Школьникам
предоставляется скидка 50%. Сколько рублей будет стоить проезд для 6 взрослых и 19 школьников?

Ответы

Автор ответа: Сабинччик
0
Вот смотри. 117 рублей -- это 100%
Значит, если для школьников скидка 50 %, то 117 поделим на 2. Так как 100:50=2
  И так, стоимость детского проезда (117:2) равна 58, 5 рублей.
Теперь посчитаем, сколько денег должны дать 6 взрослых и 19 школьников.
6*117=702 рубля.
19*58,5= 1111,5
 Вот и ответ. 

Автор ответа: Сабинччик
0
702+1111,5=1831,5
Автор ответа: HiNoHi
0
тупанула
Автор ответа: HiNoHi
0
извини
Автор ответа: Сабинччик
0
Я тоже не так написала. Думала для каждого нужно отдельно.
Автор ответа: Сабинччик
0
Да ладно, чего ты извиняешься. С каждым бывает)
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