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Dmitry [639]
3 years ago
7

A circular rug has a circumference of 18.84 feet. What is the area of the rug?

Mathematics
1 answer:
bija089 [108]3 years ago
5 0

Step-by-step explanation:

18.84/2= 9.42/3.14 = 3 times 3 = 9 times 3.14 = 28.26

answer is 28.26

sorry if i get it wrong this is how i remember finding it. Im very sure this is how it is

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The sum of three numbers is 10. Two times the second number minus the first number is equal to 12.
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<u>Answer:</u>

-10,1,19

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

<u></u>

x+y+z = 10 (Equation 1)

2y-x= 12  (Equation 2)

x-y+2z = 7 (Equation 3)

(Equation 2): -x = -2y+12

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(Equation 1) - (Equation 3): 2y-z = 3

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Substitute (4) and (5) into (1)

x+y+z = 10

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5y-15 = 10

5y = 5

y=1

Substitute y=1 into (2)

2y-x= 12

2(1)-x= 12

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x= -10

Substitute y=1 and x=-10 into (1)

x+y+z = 10

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z-9 = 10

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Order: x = -10, y = 1, and z = 19

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