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Annette [7]
3 years ago
8

Blake will use part of a garage wall as one of the long sides of a rectangular dog pen. He

Mathematics
1 answer:
Vlad [161]3 years ago
7 0

Answer:

The length of the pen is <u>26.25 feet</u>.

Step-by-step explanation:

Given:

Blake will use part of a garage wall as one of the long sides of a rectangular dog pen. Blake   wants the dog pen to be three times as long as it is wide.

The plan of Blake is to use 70 feet of fencing.

Now, to get the length of the dog pen.

Let the width of the pen be x.

So, the length of the pen be 3x.

As, Blake plans to use 70 feet of fencing.

So, the pen's perimeter = 70 feet.

Now, to get the length we use formula:

Perimeter=2(length+width)\\\\70=2(x+3x)\\\\70=2\times 4x\\\\70=8x\\\\

<em>Dividing both sides by 8 we get:</em>

8.75=x\\\\x=8.75\ feet.

Then, to substitute the value of x:

Length=3x\\\\Length=3\times 8.75\\\\Length=26.25\ feet.

Therefore, the length of the pen is 26.25 feet.

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