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3 years ago

# - A circle has an area of approximately

Mathematics

1 answer:

daser333 [38]3 years ago

3 0

Answer:

The area of the new circle is 804.57 cm^2

Step-by-step explanation:

In this question, we are interested in calculating the area of the new circle of the radius of the old circle was doubled.

Let’s calculate the former radius first;

Mathematically;

Area of a circle = π * r^2

Thus;

201.06 = π * r^2

r^2 = 201.06/π

r^2 = 63.999

r = √63.99

r = 8 approximately

Now let’s double this radius and it becomes 2 * 8 = 16 cm

The new area will be ;

22/7 * 16 * 16 = 804.57 cm^2

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Answer:

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sergiy2304 [10]

Answer:

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Step-by-step explanation:

We are given the following in the question:

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Area of lawn mowed in 5 minutes =

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Help me write "5x-(x-18)= " in those things. 5(-7) <---- (Something like that)<br> X = -7

anzhelika [568]

Answer:

This how you get x. First the way to find the answer is to first put 5x by itself by canceling it out and putting it on the other side of the = which will be

5x-(x-18)=

-5x -5

Which then gets you this

-(x-18)=-5x

After that its

x-18=-5x

once you have this subtract x

x-18=-5x

-x -x

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Then it leaves you the easy part of just dividing

-18/-6x=-6x/-6x

After dividing you get x to be 3

x=3

Once you have x=3 input that number into your equation and you get the answer.

Hope this helps

6 0

3 years ago