The length of the base measures 65 ft less than three times the width. The perimeter of this base is 870 ft. What are the
A building in a city has a
dimensions of the base?

Respuesta :

Answer:

Therefore the Dimensions of Building are

[tex]Length = 310\ ft\\Width=125\ ft[/tex]

Step-by-step explanation:

Given:

Let the length of the Base be ' L '

and Width of the Base is 'W'

According to given Condition

[tex]L = 3W -65[/tex]

Perimeter = 870 ft

To Find:

L = ?

W = ?

Solution:

Perimeter of Rectangle base is given as

[tex]Perimeter=2\times L +2\times W[/tex]

Substitute 'L' and Perimeter we get

[tex]870=2\times (3W-65) +2\times W\\870=6W-130+2W\\8W=870+130=1000\\W=\dfrac{1000}{8}=125\\\\\therefore W =125\ ft[/tex]

Substitute 'W' in L we get

[tex]L = 3\times 125 -65=310\ ft[/tex]

Therefore the Dimensions of Building are

[tex]Length = 310\ ft\\Width=125\ ft[/tex]