Question

Задача 1. Первая бригада может выполнить задание за 9 ч, а вторая – за 12 ч. Какую часть задания Выполнят бригады за 1 час совместной работы? решение срочно ​

Answer 1

Ответ:

я придпологаю что они могут это сделать за 3часа

Пошаговое объяснение:

нету ÷)

Answer 2

Task 1: Finding the Fraction of the Task Completed by Both Brigades in 1 Hour of Joint Work

To find the fraction of the task completed by both brigades in 1 hour of joint work, we can use the concept of work rates.

Let's denote the fraction of the task completed by the first brigade in 1 hour as x and the fraction of the task completed by the second brigade in 1 hour as y.

According to the given information: - The first brigade can complete the task in 9 hours. - The second brigade can complete the task in 12 hours.

Using the work rate formula, the work rate of the first brigade is 1/9 of the task per hour, and the work rate of the second brigade is 1/12 of the task per hour.

To find the combined work rate of both brigades working together, we add their individual work rates: 1/9 + 1/12 = 4/36 + 3/36 = 7/36.

Therefore, in 1 hour of joint work, both brigades together complete 7/36 of the task.

Answer: The brigades together will complete 7/36 of the task in 1 hour of joint work.