Предмет: Математика, автор: Megasyperkrinjanyl

1.ФРУКТЫ ПРИ СУШКЕ ТЕРЯЮТ 82% СВОЕЙ МАССЫ.СКОЛЬКО НАДО ВЗЯТЬ СВЕЖИХ ФРУКТОВ,ЧТО БЫ ПОЛУЧИТЬ 54КГ СУШЁНЫХ?
2.СПЛАВ СОСТОИТ ИЗ МЕДИ И ОЛОВА ОТНОШЕНИЕ ИХ МАСС 2:3 СКОЛЬКО КГ МЕДИ В НЁМ,ЕСЛИ ОЛОВА В НЁМ 6КГ?
СПАСИБО ТЕМ КТО ОТВЕТИЛ!!

Ответы

Автор ответа: dyexfnf

Ответ:

Пошаговое объяснение:

1) 100 - 82=18% масса, которая не теряется при сушке

54 * 18% : 100% =300 кг надо взять свежих фруктов

2) 6: 3= 2 кг это одна часть

2* 2= 4 кг меди в сплаве

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