Concept explainers
To calculate: The width of the deck should be when the total area of the pool and deck is 400 feet. Also, find the width of the deck.
Answer to Problem 69E
The required width of the rectangular pool is 3.5 feet.
Explanation of Solution
Given information:
The measure of rectangular pool
The length of the pool is 18 feet and width of the pool is 9 feet.
It is known that the area of the pool is
Write the translation of the above equation as:
Simplify the above equation as:
Solve the above equation by factorization method.
Solve for x .
And,
But measurement cannot be negative.
Hence, the required width of the rectangular pool is 3.5 feet.
Chapter 3 Solutions
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