Question

Решить задачу:Бригада по озеленению за первую неделю работы посадила 16% саженцев,за вторую-3\5 от числа оставшихся саженцев,за третью-остальные 504 саженцев.Сколько саженцев посадила бригада за три недели?

Answer 1

Обозначим за х все саженцы. Тогда число саженцев, посаженных в первую неделю равно 0,16х. Оставшееся число саженцев равно (х-0,16х), Тогда во вторую неделю число посаженных саженцев равно (х-0,16х)*0,6. Известо, что за третью неделю посадили уще 504 саженца, получим уравнение:

0,16х+(х-0,16х)*0,6+504=х

0,16х+0,6х-0,096х-х=-504

-0,336х=-504

х=504/0,336

х=1500

Ответ: 1500 с.

Answer 2

1) 100%-16%=84(%) осталось посадить за оставшиеся две недели

2) 84/5*3= 50.4 (%) посадили за вторую неделю

3) 100%-(16%+50.4%)= 33.6(%) посадили за третью неделю

4)504/100*33,6=1500(саж.) посадила бригада за три недели

Ответ: 1500 саженцев посадила бригада за три недели

Answer 3

Problem Analysis

We are given the following information: - In the first week, the team planted 16% of the seedlings. - In the second week, they planted 3/5 of the remaining seedlings. - In the third week, they planted the remaining 504 seedlings.

We need to find the total number of seedlings planted by the team in three weeks.

Solution

To solve this problem, we will break it down into three steps:

Step 1: Calculate the number of seedlings planted in the first week. - We are told that the team planted 16% of the seedlings in the first week. - To find the number of seedlings planted in the first week, we need to multiply the total number of seedlings by 16%. - Let's assume the total number of seedlings is represented by x. - The number of seedlings planted in the first week is given by: 0.16x.

Step 2: Calculate the number of seedlings remaining after the first week. - To find the number of seedlings remaining after the first week, we need to subtract the number of seedlings planted in the first week from the total number of seedlings. - The number of seedlings remaining after the first week is given by: x - 0.16x = 0.84x.

Step 3: Calculate the number of seedlings planted in the second week. - We are told that the team planted 3/5 of the remaining seedlings in the second week. - To find the number of seedlings planted in the second week, we need to multiply the number of remaining seedlings by 3/5. - The number of seedlings planted in the second week is given by: (3/5) * (0.84x) = 0.504x.

Step 4: Calculate the number of seedlings remaining after the second week. - To find the number of seedlings remaining after the second week, we need to subtract the number of seedlings planted in the second week from the number of seedlings remaining after the first week. - The number of seedlings remaining after the second week is given by: 0.84x - 0.504x = 0.336x.

Step 5: Calculate the number of seedlings planted in the third week. - We are told that the team planted the remaining 504 seedlings in the third week. - The number of seedlings planted in the third week is given by: 504.

Step 6: Calculate the total number of seedlings planted in three weeks. - To find the total number of seedlings planted in three weeks, we need to add the number of seedlings planted in the first, second, and third weeks. - The total number of seedlings planted in three weeks is given by: 0.16x + 0.504x + 504.

Calculation

Since we don't have the exact value of the total number of seedlings (x), we cannot calculate the exact number of seedlings planted in three weeks. However, we can express the answer in terms of x.

The total number of seedlings