A rectangular swimming pool is three times as long as it is wide. If the perimeter of the pool is 320 feet, what are its dimensions?

Elleanor Mckenzie

Elleanor Mckenzie

Answered question

2021-05-03

A rectangular swimming pool is three times as long as it is wide. If the perimeter of the pool is 320 feet, what are its dimensions?

Answer & Explanation

Jaylen Fountain

Jaylen Fountain

Skilled2021-05-05Added 169 answers

The solution is presented in the video:

Ian Adams

Ian Adams

Skilled2021-08-04Added 163 answers

Let x be the width of the rectangular swimming pool so that its width is 3x, both feet.
Since the perimeter is 320 ft, we can write:
P=2l+2w
320=2(3x)+2(x)
Solve for x. Divide both sides by 2:
160=3x+x
160=4x
40=x
So, the dimensions of the rectangular swimming pool are:
120 feet by 40 feet

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