Предмет: Математика, автор: дрон2002

в одном рулоне 7м клеёнки а в другом 13м за второй заплатилина 138 больше чем за второй сколько стоит 1 м клеёнки если матки одинаковые

Ответы

Автор ответа: Рашидка

13 - 7 = 6 м
138 : 6 = 23 рубля. Это цена метра клеенки.

7 х 23 = 161 рубль заплатили за 1 рулон

13 х 23 = 299 рублей заплатили за 2 рулон

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