Предмет: Алгебра, автор: Аноним

Помогите пожалуйста!!!​

Приложения:
pushpull: а если какое-то из них отрицательное?

Ответы

Автор ответа: palilov243659
1

Ответ:

Объяснение:

a+b+c=76.8

a-11.361=b-11.4=c-8.02⇒a=b-11.4+11.361=b-0.039, c=b-11.4+8.02=b-3.38

b-0.039+b+b-3.38=76.8⇒3b=76.8+0.039+3.38=80.219⇒b≈26.74

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