Question

Прочитай. Сделай схему. Запиши решение и ответ задачи. Третьеклассники ко Дню птиц сделали 20 скворечников, второклассники — в 4 раза меньше, чем третьеклассники, а четвероклассники — на 17 скворечников больше, чем второклассники. Сколько всего скворечников сделали школьники?

Answer 1

Ответ:

40

Пошаговое объяснение:

1)20:4=5(скворечников)-второклассники

2)10+5=15(скворечников)-четвероклассники

3)20+5+15=40(скворечников)-всего

Answer 2

According to the search results, the problem states that third graders made 20 birdhouses, second graders made 4 times fewer birdhouses than the third graders, and fourth graders made 17 more birdhouses than the second graders. We need to find the total number of birdhouses made by the students.

Let's break down the problem step by step:

Step 1: Define the variables

Let's define the variables: - x: the number of birdhouses made by the third graders - y: the number of birdhouses made by the second graders - z: the number of birdhouses made by the fourth graders

Step 2: Translate the problem into equations

Based on the given information, we can write the following equations: - The second graders made 4 times fewer birdhouses than the third graders: y = x/4 - The fourth graders made 17 more birdhouses than the second graders: z = y + 17

Step 3: Solve the equations

To find the values of x, y, and z, we can substitute the second equation into the first equation: - y = (x/4) - z = (x/4) + 17

Now, let's solve for x: - x = 20 (given)

Substituting x = 20 into the equations for y and z: - y = 20/4 = 5 - z = 5 + 17 = 22

Step 4: Find the total number of birdhouses

To find the total number of birdhouses made by the students, we need to add up the number of birdhouses made by each grade: - Total = x + y + z = 20 + 5 + 22 = 47

Therefore, the total number of birdhouses made by the students is 47.

I hope this helps! Let me know if you have any further questions.