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natta225 [31]
1 year ago
15

The length of a rectangle is twice the width. Given that the perimeter of the rectangle is 24 feet, how many square feet are in

the area of the rectangle?
Mathematics
1 answer:
just olya [345]1 year ago
5 0

Answer:

Area = 32feet²

Step-by-step explanation:

Perimeter of a rectangule = 2(length+width)

Then:

g = 2w               Eq. 1

2(g+w) = 24       Eq. 2

g = length

w = width

From Eq. 2:

(2*g + 2*w) = 24

2g + 2w = 24      

2w = 24 - 2g            Eq. 3

Matching Eq. 1  and Eq. 3

g = 24 - 2g

g + 2g = 24

3g = 24

g = 24/3

g = 8 feet

From Eq. 1

g = 2w

8 = 2w

8/2 = w

w = 4 feet

Check:

From Eq. 2

2(g+w) = 24

2(8+4) = 24

2*12 = 24

Answer:

Area of a rexctangle = length * width

Then:

Area = 8feet * 4feet

Area = 32feet²

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Which number is irrational? <br> A: √9<br> B: √8<br> C: 0.3333<br> D: 2/3<br><br> Answer fast please
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\sqrt{8} is an irrational number ⇒ answer B

Step-by-step explanation:

Let us explain the meaning of:

  • A rational number is a number that can be written as a fraction
  • An irrational number is a number that cannot be expressed as a fraction

Examples:

Rational numbers : 10 , \frac{2}{5} , 0.333

Irrational numbers : π , √8 , ∛25 , (2 + √5) , \frac{\sqrt{7}}{3}

∵ \sqrt{9}=3

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∵ \sqrt{8}

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∴ \sqrt{8} is an irrational number

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∴ 0.3333 is a rational number

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∵ All fractions are rational numbers

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Learn more:

You can learn more about real numbers in brainly.com/question/4853862

#LearnwithBrainly

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