Question

A rectangular swimming pool has a length that is 3.5 times its width. Define a variable to represent the unknown quantity. Then write an expression to represent the perimeter of the rectangle

Answer 1

The width of the pool is represented by 'w' and the length is 3.5w. The expression to represent the perimeter of the rectangle is 9w.

Step-by-step explanation:

To represent the unknown quantity, let's define the width of the pool as 'w'. The length of the pool is then 3.5 times the width, so it can be represented as 3.5w.

The perimeter of a rectangle is the sum of all its sides. For this rectangle, each length is 3.5w and each width is w. So, the expression to represent the perimeter is 2(3.5w) + 2w = 7w + 2w = 9w.

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