Предмет: Математика, автор: insar200735

длина гостиной 7 М длина спальни 5 М ширина одинакововая какова площадь гостиной если площадь спальни? на 8м квадратных меньше

Ответы

Автор ответа: zhannagonchar19

пусть Sспальни=х,
тогда Sгостинной =х+8м²
Lгостинной =7м.
Lспальни =5м. Sгостинной=(х+8)м²*7м=(7х+56)м².
х=8м².
Sгостинной =16м²
Sспальни =8м²

Автор ответа: vipmissalena

Площадь гостиной- 28м квадратных

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