Question

Длина шага Миши равна 75 см.Когда он измерил шагами длину прямоугольной площадки, у него получилось 120 шагов .А когда Сёма измерил шагами ширину этой площадки , у него получвилось 60 шагов. Известно , что периметр площадки равен 240 м. Верно ли утверждение ? Длинна шага Сёмы равна 50 см ? Ширина площадки равна одной трети от её длины ?

Answer 1

1)75*120=9000(см)- длинна площадки;

2)3000:60=50(см)- длинна шага Сёмы;

(первое утверждение верно)

(240м=24000см)

24000:2-9000=(3000см)

второе утверждение верно

 

Answer 2

утверждение не правильное

остальное не знаю))

Answer 3

To solve this problem, let's break it down step by step.

Given Information:

- Length of Mishka's step = 75 cm - Mishka took 120 steps to measure the length of the rectangular platform - Semyon took 60 steps to measure the width of the platform - Perimeter of the platform = 240 m - Length of Semyon's step = 50 cm - Width of the platform is one-third of its length

Calculating the Length and Width of the Platform:

To find the length and width of the platform, we can use the given information and some basic formulas.

Let's assume: - Length of the platform = L - Width of the platform = W

We know that the perimeter of a rectangle is given by the formula: Perimeter = 2 * (Length + Width)

Substituting the given perimeter value, we get: 240 = 2 * (L + W)

Simplifying the equation, we have: 120 = L + W

We also know that the width of the platform is one-third of its length: W = (1/3) * L

Substituting this value of W in the equation above, we get: 120 = L + (1/3) * L

Simplifying further, we have: 120 = (4/3) * L

To find the value of L, we can multiply both sides of the equation by (3/4): L = (3/4) * 120

Simplifying, we find: L = 90

Now, we can substitute this value of L in the equation for W: W = (1/3) * 90

Simplifying, we find: W = 30

Therefore, the length of the platform is 90 meters and the width is 30 meters.

Verifying the Claim about Semyon's Step Length:

The claim is that the length of Semyon's step is 50 cm. To verify this claim, we can use the given information that Semyon took 60 steps to measure the width of the platform.

If we assume that the width of the platform is equal to the number of Semyon's steps multiplied by his step length, we can calculate the width as follows:

Width = Number of Steps * Step Length

Substituting the given values, we have: 60 * 50 cm = 3000 cm

Converting cm to meters, we get: 3000 cm = 30 meters

Since the calculated width of the platform is 30 meters, which matches the actual width we calculated earlier, we can conclude that the claim about Semyon's step length of 50 cm is correct.

Conclusion:

- The length of the platform is 90 meters and the width is 30 meters. - The claim about Semyon's step length of 50 cm is correct. - The width of the platform is indeed one-third of its length.

Please let me know if there's anything else I can help you with!