Louis wants to carpet the rectangular floor of his basement. The basement has an area of 4860 square feet. The width of the basement is 3/5 it’s length. What is the length of Louis’a basement?

Respuesta :

Answer:

The length of Louise’s basement is 90 feet.

Step-by-step explanation:

Given:

Louis wants to carpet the rectangular floor of his basement.

The basement has an area of 4860 square feet.

The width of the basement is 3/5 it’s length.

Now, to find the length of Louise’s basement.

Let the length of basement be [tex]x.[/tex]

So, the width is:

[tex]\frac{3}{5}\ of\ x\\=\frac{3}{5}\times x\\=\frac{3x}{5}[/tex]

Area of the basement = 4860 square feet.

Now, to get the width of basement we put formula:

[tex]Area=length\times width[/tex]

[tex]4860=x\times \frac{3x}{5}[/tex]

[tex]4860=\frac{3x^2}{5}[/tex]

Multiplying both sides by 5 we get:

[tex]24300=3x^2[/tex]

Dividing both sides by 3 we get:

[tex]8100=x^2[/tex]

Using square root on both sides we get:

[tex]90=x[/tex]

[tex]x=90\ feet.[/tex]

Therefore, the length of Louise’s basement is 90 feet.