Question

А)Длина вновь построенной дороги -126км.2/9 части дороги озеленили.Сколько километров дороги осталось озеленить? МОЖНО ПЖ С УСЛОВИЕМ КАК ПИСАТЬ. б)Длина поля-15км,а ширина-3/5 длины.Чему равна ширина поля?Найди периметр и площадь поля. МОЖНО ПЖ С УСЛОВИЕМ КАК ПИСАТЬ.

Answer 1

Відповідь:

а) 98 км

б) Ширина = 9 км

Периметр = 48 км

Площадь = 135 км

Покрокове пояснення:

а) 126*2/9=28 - уже озеленили

126-28=98 - осталось озеленить

б) 15*3/5=9 - ширина

P=2a+2b=15*2+9*2=48 - периметр

S=a*b=15*9=135 - площадь

Answer 2

Ответ:
Длинна дороги - 126 км
Озеленили - 2/9
Осталось озелинить - ?
Решение : 126-(126 : 9 × 2)=98км
Ответ : 98 км

a-15км
b-?,3/5
S-?
P-?
Решение : 15:5×3=9км
(9км+15км)×2=48км
15км×9км=135км
Ответ : b-9км , S-135км , P-48км

Надеюсь помогла можешь пж отметить как лучший ♡☆♡☆
Пошаговое объяснение:

Answer 3

Task A: Length of Road and Greenery

The length of the newly constructed road is 126 km, and 2/9 of the road has been landscaped. We need to find out how many kilometers of the road are left to be landscaped.

To solve this, we can use the following calculation:

Step 1: Calculate the length of the road that has been landscaped. Step 2: Subtract the landscaped length from the total length to find the remaining length to be landscaped.

Let's proceed with the calculations.

Step 1: Calculate the length of the road that has been landscaped. The length of the road that has been landscaped can be found by multiplying the total length of the road by the fraction of the road that has been landscaped (2/9).

The length of the road that has been landscaped = 126 km * (2/9) = 28 km.

Step 2: Find the remaining length of the road to be landscaped. The remaining length of the road to be landscaped is the difference between the total length of the road and the length that has been landscaped.

Remaining length of the road to be landscaped = 126 km - 28 km = 98 km.

So, the remaining length of the road to be landscaped is 98 km.

Task B: Length and Width of Field, Perimeter, and Area

The length of the field is 15 km, and the width is 3/5 of the length. We need to find the width of the field, as well as the perimeter and area of the field.

To solve this, we can use the following calculations:

Step 1: Calculate the width of the field. Step 2: Calculate the perimeter of the field. Step 3: Calculate the area of the field.

Let's proceed with the calculations.

Step 1: Calculate the width of the field. The width of the field is 3/5 of the length.

Width of the field = (3/5) * 15 km = 9 km.

So, the width of the field is 9 km.

Step 2: Calculate the perimeter of the field. The perimeter of a rectangle can be calculated using the formula: 2 * (length + width).

Perimeter of the field = 2 * (15 km + 9 km) = 2 * 24 km = 48 km.

So, the perimeter of the field is 48 km.

Step 3: Calculate the area of the field. The area of a rectangle can be calculated using the formula: length * width.

Area of the field = 15 km * 9 km = 135 sq. km.

So, the area of the field is 135 sq. km.

Therefore, the width of the field is 9 km, the perimeter of the field is 48 km, and the area of the field is 135 sq. km.