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amid [387]
3 years ago
13

a piece of land 120 ft by 240 ft contains a circular garden. surrounding the garden, there is a circular fence that is 20 ft in

diameter. what is the area of the piece of land that is not part of the garden
Mathematics
1 answer:
damaskus [11]3 years ago
8 0

the area of the piece of land that is not part of the garden is 28,486ft^2 .

<u>Step-by-step explanation:</u>

Here we have , a piece of land 120 ft by 240 ft contains a circular garden. surrounding the garden, there is a circular fence that is 20 ft in diameter.  We need to find what is the area of the piece of land that is not part of the garden . Let's find out:

Let's calculate area of land and circular garden , and in order to find the area of the piece of land that is not part of the garden we will subtract area of circular garden from land !

Area of Land:

Area of land is given by

⇒ length(width)

⇒ 120(240)

⇒ 28,880ft^2

Area of Garden:

Area of circular garden given by

⇒ \pi r^2

⇒ \pi (\frac{D}{2})^2

⇒ \pi (\frac{20}{2})^2

⇒ \pi (10)^2

⇒ 100\pi

⇒ 100(3.14)

⇒ 314ft^2

Hence , the area of the piece of land that is not part of the garden is 28,880-314 = 28,486 . Therefore , the area of the piece of land that is not part of the garden is 28,486ft^2 .

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The system of equations are;

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Step-by-step explanation:

In this question, we are concerned with writing the system of equations that could help us determine the number of tacos and burritos sold.

Firstly, we start with defining variables. Let the number of tacos sold be t and the number of burritos sold be b

*there we twice as many burritos as tacos sold. What this simply means is that the number of tacos sold is twice the number of tacos.

Mathematically that could be written as ;

t = 2b ••••••••••(i)

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