Предмет: Математика, автор: alena0707listru

Помогите решить: 2,9x при x=5;
1,6 + y при x=5;y=5,6;
0,84x + 0,5y при x=3;y=4;
7,5x+6,9y при x=8;y=3.
Даю 15 баллов!!!

Geo909: во 2м у тебя 1.6х ??
alena0707listru: да
Geo909: ок

Ответы

Автор ответа: Человекиз
1
1) 14,5
2)7,2
3)2,52 + 2 = 4,52
4)60 + 20,7 = 80,7
Автор ответа: Geo909
1
1) 14.5
2)13.6
3)4.52
4)80.7
alena0707listru: А можно решение а не только ответ?
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