Предмет: Алгебра, автор: protsenko2014

Ребят,помогите пожалуйста!!!! ля
приготовления
зимнего
салата
взяли
5,8
кг
овощей
:
морковь
,
кабачки
и
лук
.
Масса
моркови
составила
0,6
от
массы
лука
.
А
кабачков
на
- 30%
больше
,
чем
лука
.
Сколько
килограммов
моркови
взяли
для
приготовления
салата
?

Ответы

Автор ответа: natali3221

Пусть лука для салата взяли х кг , тогда моркови ---0,6х.
30%=0,3
кабачков ----х+0,3х=1,3х. Всего---5,8кг. Имеем уравнение
х+0,6х+1,3х=5,8
2,9х=5,8
х=5,8:2,9
х=2 ( кг лука)
0,6·2=1,2(кг) моркови
Ответ: 1,2 кг моркови

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