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ioda
3 years ago
14

A square classroom has sides that are 21 feet long. what is the room's perimeter

Mathematics
2 answers:
lutik1710 [3]3 years ago
4 0
The answer is 84 because 21 times 4 equals 84
patriot [66]3 years ago
4 0
Multiply 21x4 the answer would be 84
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The cost to rent each chair is $1.5 and cost to rent each table is $6.5

<h3>Applications of systems of linear equations </h3>

From the question, we are to determine the cost to rent each chair and each table

Let c represent chair

and

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From the given information,

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5c + 3t = 27 ------------ (1)

Also,

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2c + 12t = 81 ---------- (2)

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2 × [5c + 3t = 27 ]

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Subtract equation (4) from equation (3)

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---------------------------

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Learn more on Solving system of linear equations here: brainly.com/question/13729904

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