2 years ago

Middle School Math Medium Level

Mathematics

1 answer:

Nata [24]2 years ago

7 0

Answer:

Its 0, 1.

Step-by-step explanation:

ItsQuipo on yt

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The sum of the areas of two circles is 80 pie square meters. Find the length of a radius of each circle if one of them is twice

Svetach [21]

Answer:

The radius of the circles are $4\ m$ and $8\ m$

Step-by-step explanation:

Let

x-----> the radius of larger circle

y----> the radius of smaller circle

we know that

$\pi x^{2} +\pi y^{2}=80\pi$

$x^{2} +y^{2}=80$ -----> equation A

Remember that

$x=2y$ -----> equation B

substitute equation B in equation A and solve for y

$(2y)^{2} +y^{2}=80$

$4y^{2} +y^{2}=80$

$5y^{2}=80$

$y^{2}=16$

$y=4\ m$

Find the value of x

$x=2y$

$x=2(4)=8\ m$

therefore

The radius of the circles are $4\ m$ and $8\ m$

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3 years ago

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Anastasy [175]

Answer:

Step-by-step explanation:

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Jane is going to fence in her back yard. She has purchased 150 feet of

Alborosie

D. x+ 40 = 150 this is the answer

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a living room wall is 13 feet long. How far from the corner would you hace to the edge of a 3ft 8in shelf for it to be centered

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It would be centered togethered.

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Goryan [66]

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It would have to be (C) 50.27 because 25 is too short for a diameter of 8 seeing it would be 8x4 to get 32 in which 25 is not long enough for. So the answer is C.

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