Question

Помогите плиз! Строится дорога длиной 15 км и шириной 6 м.Сколько идёт самосвалов с гравием для покрытия дороги,если содержимое одного самосвала идёт на покрытие 5 кв.м дороги?

Answer 1

1)15*6=90 кв м нужно покрыть асфальтом
2)90:5=18 самосвалов
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Answer 2

Calculating the Number of Dump Trucks Needed for Road Construction

To calculate the number of dump trucks needed for covering a 15 km long road with a width of 6 m, we can use the given information that the contents of one dump truck can cover 5 square meters of the road.

Step 1: Calculate the Total Area of the Road The total area of the road can be calculated using the formula: \[ \text{Total area} = \text{Length} \times \text{Width} \]

Substituting the given values: \[ \text{Total area} = 15 \, \text{km} \times 6 \, \text{m} \]

Converting the length from kilometers to meters: \[ \text{Total area} = 15,000 \, \text{m} \times 6 \, \text{m} \]

\[ \text{Total area} = 90,000 \, \text{square meters} \]

Step 2: Calculate the Number of Dump Trucks To find the number of dump trucks needed, we can divide the total area of the road by the area covered by one dump truck.

\[ \text{Number of dump trucks} = \frac{\text{Total area}}{\text{Area covered by one dump truck}} \]

Substituting the values: \[ \text{Number of dump trucks} = \frac{90,000 \, \text{square meters}}{5 \, \text{square meters/dump truck}} \]

\[ \text{Number of dump trucks} = 18,000 \]

Conclusion: To cover a 15 km long road with a width of 6 m, approximately 18,000 dump trucks would be needed if the contents of one dump truck can cover 5 square meters of the road.