Предмет: Математика, автор: Popka1337tyu

Нужна помощь.Спасибо

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Автор ответа: ablabuda
0
Обозначим розы X, тюлпаны Y.
Тогда X+Y=80   =>   Y=80-X
3X+Y<131  =>  3X+80-X<131   =>   2X<51   =>  X<25.5
X+2Y<136  =>   X+160-2X<136   =>  24<X
Из этого вытекает, что раз X и Y целые числа, получается, что X=25 а Y=55
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