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ch4aika [34]
3 years ago
14

Guys, please help me

Mathematics
1 answer:
Amanda [17]3 years ago
8 0

It's 21.4 square centimetres

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The 2nd and 4th one are correct answers! Hope this helps! ;)
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The pet store sells a lot of pet food. On a slow day at the pet store, three people buy cat food, two people buy dog food, and o
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The perimeter of a rectangle is 182 ft. The width is two more feet than the length . Find the length and width.
Kamila [148]

Let's call the width w and the length l based on this, we can make two equations based on the first and second sentences in the problem.

w = l + 2

2l + 2w = 182


If we substitute l + 2 for w into the second equation, we can make the following:

2l + 2(l + 2) = 182

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2l + 2l + 4 = 182

  • Use the Distributive Property

4l + 4 = 182

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4l = 178

  • Subtract 4 from both sides

l = \dfrac{178}{4} = \dfrac{89}{2}

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Now, let's find w:

w = l + 2 = \dfrac{89}{2} + 2 = \dfrac{93}{2}


The length of the rectangle is \boxed{\dfrac{89}{2} \,\textrm{ft}} and the width of the rectangle is \boxed{\dfrac{93}{2} \,\textrm{ft}}.

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3 years ago
Explain why each statement is true. 5 + 2 + 3 = 5 + (2 + 3)
Y_Kistochka [10]

Answer:

Associative property of addition. Grouping different addends does not change the sum.

Step-by-step explanation:

5 + 2 + 3 = 5 + (2 + 3)

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10 = 10

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ok, relax and listen I’ve got this ok?

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see?you got this I believe in you!!!

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