Предмет: Математика, автор: dan5842

Дам 15 баллов

В саду растут кусты белых, розовых и красных роз. Красные розы составляют 40% всех кустов, розовые – 58% остальных. Белых роз растет 126 кустов. Сколько всего кустов роз растет в саду?

Ответы

Автор ответа: Synco

3

100-40=60% - розовые и белые розы
60:100*58=34,8% - розовые розы
60-34,8=25,2% - белые розы
126*100:25,2=500 роз
Ответ: 500 роз растёт в саду.

Проверка:
500*0,4=200 роз - красных
500-200=300 роз - остальные
300*0,58=174 роз - розовые
300-174=126 роз - белые

Synco: где?

Synco: Сейчас проверку напишу

Synco: Обнови страницу

stark192002: всё я тут

stark192002: ты зачем 60% :100

Synco: Всё подробно, мог сразу написать *0,58

stark192002: тебе известно что красные розы 40%,а розовые 58%

Synco: 58% остальных

Synco: Это значит 58% от остатка, а не просто 58%

iazikovaavp7y53j: это правильно

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