Question

Мальчик разложил 10 камешков на стол на расстоянии 3см друг от друга .какое расстояние между первым и последним камешками

Answer 1

Между 10 камешками 9 промежутков по 3 см
3*9=27(см)

Answer 2

9*3=27(см)
Ответ: 27 см-рассояние между последним и первым камешком.

Answer 3

Calculating the Distance Between the First and Last Stones

To calculate the distance between the first and last stones, we can use the formula for the sum of the first n terms of an arithmetic sequence:

Sum = (n/2) * (first term + last term)

In this case, the first term is 3 cm and the last term is 3 cm + 9 * d, where d is the common difference between the stones.

Applying the Formula

Using the formula, we can calculate the distance between the first and last stones:

Sum = (10/2) * (3 + (3 + 9d))

Simplifying, we get:

10 * (3 + 3 + 9d) / 2

= 10 * (6 + 9d) / 2

= 5 * (6 + 9d)

This gives us the sum of the first 10 terms of the sequence, which is equal to the total distance between the first and last stones.

Solving for the Common Difference

To find the common difference (d), we can use the information from the search results to solve for d. The search results provide various pieces of information that can help us determine the value of d.

Let's use the search results to find the value of d and then calculate the distance between the first and last stones.