Question

Длина игровой площадке 18 метров а ширина составляет одну шестую часть длины сколько мотков По 7 м проволоки понадобится чтобы оградить эту площадку двойным слоем проволоки?

Answer 1

Ищем ширину 18:6= 3 м
ищем периметр 18•3=54м
54•2= 108м ответ 108 метров проволоки понадобится чтобы оградить площадку

Answer 2

Calculation of the Number of Wire Rolls Needed

To calculate the number of wire rolls needed to fence the playground with a double layer of wire, we need to determine the perimeter of the playground and divide it by the length of wire in each roll.

Given: - Length of the playground: 18 meters - Width of the playground: one-sixth of the length

To find the perimeter of the playground, we can use the formula for the perimeter of a rectangle:

Perimeter = 2 * (Length + Width)

Substituting the given values:

Perimeter = 2 * (18 + (1/6) * 18)

Simplifying the equation:

Perimeter = 2 * (18 + 3)

Perimeter = 2 * 21

Perimeter = 42 meters

Now, we need to calculate the length of wire needed for a double layer of fencing. Since each roll of wire is 7 meters long, we multiply the perimeter by 2 to account for the double layer:

Total length of wire needed = 2 * Perimeter

Total length of wire needed = 2 * 42

Total length of wire needed = 84 meters

To find the number of wire rolls needed, we divide the total length of wire needed by the length of wire in each roll:

Number of wire rolls needed = Total length of wire needed / Length of wire in each roll

Number of wire rolls needed = 84 / 7

Number of wire rolls needed = 12 rolls

Therefore, to fence the playground with a double layer of wire, you will need 12 rolls of wire, with each roll being 7 meters long.

Answer:

To fence the playground with a double layer of wire, you will need 12 rolls of wire, with each roll being 7 meters long.