Предмет: Математика, автор: nikitakreminskij

Для фарбування паркану, що має площу 24м², використали 3 кг 600г фарби. Скільки фарби знадобиться для фарбування іншого паркану який має форму прямокутника зі сторонами 2м і 8м?​

Ответы

Автор ответа: iramazurk
19

Ответ:

2,4 кг краски

Пошаговое объяснение:

3 кг 600 г = 3,6 кг

1) 2 * 8 = 16 (м²) - площадь другого забора

2)

3,6 кг краски — 24 м²

х кг краски — 16 м²

3,6/х = 24/16

24 * х = 16 * 3,6

24х = 57,6

х = 57,6 : 24

х = 2,4


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