Предмет: Математика, автор: stepanbozh

Майстер планував щодня виготовляти по 24 де­талі, щоб виконати замовлення вчасно. Але оскільки він виготовляв щодня на 15 деталей більше, то вже за 6 днів до кінця терміну роботи він виготовив 21 деталь понад замовлення. Скільки днів мав пра­цювати майстер над замовленням?

Ответы

Автор ответа: akipzz
35

Ответ:

Нехай майстер планував працювати над замовленням х днів. За ці дні він мав виготовити 24х деталі.

Однак за (х - 6) днів він виготовив 39(х - 6) деталей.

Відповідно до умови задачі складаємо рівняння:

39(х - 6) - 24х = 21;

15х = 255;

х = 17.

Отже, майстер мав працювати над замовленням 17 днів.

Відповідь. Майстер мав працювати над замовленням 17 днів.

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там где цифра идет после буквы, скорее всего это степень.
более понятно в документе в ворде.
ЗАРАНЕЕ СПАСИБО ОГРОМНОЕ!)