Question

Первоя бригада посадит 60 деревьев ща 3 часа такую работу вторая бригада выполнит за 6 часов используя условие выбери выражения которые имеют смысл и запиши к ним пояснение 60:3+60:6. 60:(3+6). 60:3-60:6 60:(6-3)

Answer 1

60:3 + 60:6 = 20 + 10 = 30 - обе бригады за час работы посадят столько деревьев

60:3 - 60:6 = 20 - 10 = 10 - первая бригада за час работы посадят на столько деревьев больше

Answer 2

60:3+60:6=30д-посадили за час обе бригады
60:3-60:6 =10д-на столько деревьев за час посадила больше 1 бригада

Answer 3

Calculation of Tree Planting Time

To calculate the time it takes for each brigade to plant 60 trees, we can use the following expressions:

1. 60:3: This expression represents the time it takes for the first brigade to plant 60 trees in 3 hours. 2. 60:6: This expression represents the time it takes for the second brigade to plant 60 trees in 6 hours. 3. 60:(3+6): This expression represents the time it takes for both brigades to plant 60 trees together. It is calculated by adding the time taken by each brigade individually.

Let's calculate the values for these expressions:

1. 60:3: - The first brigade plants 60 trees in 3 hours. - Therefore, the rate at which they plant trees is 60 trees divided by 3 hours, which is 20 trees per hour. - So, it would take the first brigade 3 hours to plant 60 trees.

2. 60:6: - The second brigade plants 60 trees in 6 hours. - Therefore, the rate at which they plant trees is 60 trees divided by 6 hours, which is 10 trees per hour. - So, it would take the second brigade 6 hours to plant 60 trees.

3. 60:(3+6): - To calculate the time it takes for both brigades to plant 60 trees together, we add the rates at which they plant trees. - The first brigade plants 20 trees per hour, and the second brigade plants 10 trees per hour. - Therefore, the combined rate at which they plant trees is 20 trees per hour + 10 trees per hour, which is 30 trees per hour. - So, it would take both brigades 60 trees divided by 30 trees per hour, which is 2 hours.

Therefore, the time it takes for each brigade to plant 60 trees is as follows:

- The first brigade takes 3 hours. - The second brigade takes 6 hours. - Both brigades together take 2 hours.

Please note that the information provided above is based on the calculations made using the given expressions.