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aalyn [17]
3 years ago
8

The Cosmic Pool company is building a pool in Mary’s back yard. The pool is to be 8ft longer than it is wide and cover 240 squar

e feet of the back yard. Determine both dimensions of the pool and the perimeter.
Group of answer choices

A. Dimensions: width = 20ft & length = 12ft
Perimeter: 32ft

B. Dimensions: width = 20ft & length = 12ft
Perimeter: 64ft

C. Dimensions: width = 12ft & length = 20ft
Perimeter: 64ft

D. Dimensions: width = 12ft & length = 20ft
Perimeter: 32ft
Mathematics
1 answer:
Aneli [31]3 years ago
4 0

Answer:

The correct answer is C.

Step-by-step explanation:

Since the Cosmic Pool company's pool's length is 8ft longer than the width, you can immediately rule out choices A and B, since their <em>widths</em> are greater than their <em>lengths</em> by 8, and not vice versa. This leaves choices C and D. The perimeter of a quadrilateral's formula is 2(l+w), which means the length plus the width and multiplied by 2. Using this formula, you can infer that the perimeter is 2(20+12) = 2*32 = 64ft, so choice C is the correct answer.

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Step-by-step explanation:

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I'm assuming this is a fraction.The concept is actually pretty simple.  What happens if you have 2/4?  You can simplify it into 1/2.  The concept is basically saying 2/(2*2) and here 2/2 = 1 so the 2 ont he top cancels out with one of the 2s on the bottom.  This canceling only works for multiplication and division.

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