A rectangular swimming pool is [tex]x[/tex] meters wide. The length of the swimming pool is twice as long as the width. If the area of the pool is 64 square meters, which of the following equations represents the information given?

A. [tex]x(x+2)=64[/tex]

B. [tex]x(2x+2)=64[/tex]

C. [tex]x(2x)+x(2x)=64[/tex]

D. [tex]x(2x)=64[/tex]



Answer :

Certainly! Let's go through the problem step-by-step to find the correct equation that represents the information given.

### Step 1: Define the Width and Length
- Let the width of the rectangular swimming pool be [tex]\( x \)[/tex] meters.
- The length of the rectangular swimming pool is twice the width, so it is [tex]\( 2x \)[/tex] meters.

### Step 2: Calculate the Area
- The area of a rectangle is given by the product of its width and length.
- Therefore, the area [tex]\( A \)[/tex] of the swimming pool is:
[tex]\[ A = \text{width} \times \text{length} \][/tex]
- Substituting the given values:
[tex]\[ A = x \times 2x \][/tex]

### Step 3: Substitute the Given Area
- We are given that the area of the pool is 64 square meters.
- Thus, the equation becomes:
[tex]\[ x \times 2x = 64 \][/tex]
Simplifying the left side:
[tex]\[ 2x^2 = 64 \][/tex]

Thus, the equation representing the information given is:
[tex]\[ 2x^2 = 64 \][/tex]

Hence, the appropriate form from the given options is:

- [tex]\( x(2x) = 64 \)[/tex]

This is the correct equation that represents the scenario described for the swimming pool.