Mathematics High School

A rectangular field, 400 m long, has an area of 6 hectares. Calculate the perimeter of the field [ 1 hectare=10000m2] What's the answer to this question and what is the way to solve it! ​

Answers

Answer 1

The perimeter of this rectangular field is equal to 1,100 meters.

How to calculate the area of a rectangle?

Mathematically, the area of a rectangle can be calculated by using this formula:

A = LW

Where:

A represents the area of a rectangle.W represents the width of a rectangle.L represents the length of a rectangle.

Note: Area = 6 × 10,000 = 60,000 m^2.

Next, we would determine the width of this rectangle:

60,000 = 400W

W = 60,000 /400

Width, W = 150 m.

Mathematically, the perimeter of a rectangle can be calculated by using this mathematical expression;

Perimeter of a rectangle = 2(L + W)

Perimeter of a rectangle = 2(400 + 150)

Perimeter of a rectangle = 2(550)

Perimeter of a rectangle = 1,100 meters.

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Answer 2

The perimeter of the rectangular field with an area of 6 hectares and length of 400m is 1100 meters.

What is the perimeter of the field?

The perimeter of a rectangle is expressed as;

P = 2( length + width )

Given the data in the question;

Length of the field = 400m Area of the field = 60,000m²Width of the field = ?

First, we determine the width of the field using the area formula.

Area = Length × width

Plug in the values and solve for width

60,000m² = 400m × width

60,000m² / 400m = Width

Width = 150m

Now, the perimeter will be;

P = 2( 400 + 150 )

P = 2( 550 )

P = 1100 meters.

Therefore, the perimeter is 1100 meters.

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Related Questions

the distribution of prices for a certain car model is approximately normal with mean $21,800 and standard deviation $400. a random sample of 4 cars of the model will be selected. what is the correct unit of measure for the mean of the sampling distribution of x¯ ?

Answers

The required unit of the measure of the mean is given in Dollars. Option A is correct.

Given that:

The distribution of prices for a certain car model is approximately normal with a mean of $21,800 and a standard deviation of $400. A random sample of 4 cars of the model will be selected.

The correct unit of measure for the mean of the sampling distribution of the price of the car is to be determined,

The mean of the values is the ratio of the total sum of values to the number of values.

Since the given data is of price in dollars so the measure of the mean will also be taken in Dollars because the mean is defined as the sum of all the values in a particular unit divided by the total number of different quantities.

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estimate the air pressure inside a category 5 hurricane, where the wind speed is 300 km/h. 5, where the wind speed is 300 km/h

Answers

The air pressure inside a category five hurricane with a wind speed of 300 km/h can be estimated using Bernoulli's equation.the atmospheric pressure is 20.96 atmospheres,

Bernoulli's equation states that the pressure inside the hurricane is equal to the density of the air multiplied by the wind speed squared, divided by two.

In this case, the air pressure can be calculated to be 20.96 atmospheres.  density of the air can be taken to be 1.29 kg/m³ . This demonstrates that the air pressure inside a category 5 hurricane with a wind speed of 300 km/h is very high, which is why these storms are so destructive.

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A restaurant has 50 tables. 40% of the tables have 2 chairs at each table. The remaining 60% of the tables have 4 chairs at each table. How many tables have 2 chairs?

Answers

Answer:

There are 20 tables with 2 chairs and 30 tables with 4 chairs in the restaurant. To calculate this, you can use the following formula: 40% of 50 tables = 50 x 0.4 = 20 tables with 2 chairs. The remaining 60% of 50 tables = 30 tables with 4 chairs.

112 is what percent of 320?

Answers

Answer:

Step-by-step explanation:

It is 35%

First turn the question into a fraction which is 112/320, and now since it is asking for percentage we multiply the whole fraction by 100 which will look like this:

112/320 X 100.

If you put that into the calculator you will get 35. But you can also do it mentally.

If you choose to do it mentally, we go left to right so 112 X 100 = 11200 and then divide 11200 by 320 and you get 35.

4. Joy earned 20,000 bonus points on her computer assignment. This is 10 times as many bonus points as she earned last week. How many bonus points did Joy earn last week? Explain your thinking.

PLS I NEED THE ANSWER ​

Answers

Answer: Joy earned 2000 bonus points

Step-by-step explanation: Since Joy earned 20000 bonus points last week and the bonus points she earned this week is ten times less than what she earned last week, the full equation would be 20000/10 which would equal 2000.

Christopher plans to repaint some classroom bookcases. He has 8 gallons of paint. All of the bookcases are the same size and and each book requires 2/5 gallons of paint. How many bookcases will he be able to paint?

Answers

The number of bookcases that Christopher will be able to paint. given the amount of paint he has, is

How to find the number of bookcases ?

Each bookcase would require 2 / 5 gallons of paint and Christopher has 8 gallons of paint to spare.

This means that the number of bookcases that can be painted would be :

= Gallons of paint available / Requirement for each book

Gallons of paint available = 8 gallons

Requirement for each book = 2 / 5 gallons

The number of bookcases is:

= 8 ÷ 2 / 5

= 8 x 5 / 2

= 20 bookcases

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