3 years ago

Find the solution to the system of equations.

Mathematics

1 answer:

masha68 [24]3 years ago

6 0

Answer:

x=-2, y=2

Step-by-step explanation:

we have

$-8x+4y=24$ -----> equation A

$-7x+7y=28$ ----> equation B

Solve the system by graphing

The solution of the system of equations is the intersection point both graphs

using a graphing tool

The solution is the point (-2,2)

see the attached figure

therefore

x=-2, y=2

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

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Answer:

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$R =8m$ --- big circle

Step-by-step explanation:

Given

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Required

The radius of the larger circle

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$Area = \pi r^2$

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