Предмет: Математика, автор: nikitkavelbovets

Сплав, який використовується при паянні, вміщує 58% свинцю і 2.5% різних домішків. Решта сплаву - олово. Знайди масу куска цього сплаву, якщо в ньому свинцю на 22.2 грами більше, ніж олова.
Помогите пожалуйста

Ответы

Автор ответа: Аноним

Ответ:

120 г

Пошаговое объяснение:

100-58-2,5=39,5% олово

58-39,5=18,5% это 22,2 г

22,2/(18,5/100)=120

nikitkavelbovets: Спасибо

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