Cantwell Associates, a real estate developer, is planning to build a new apartment complex consisting of x one-bedroom units, y two-bedroom townhouses, and z three-bedroom townhouses. A total of 186 units are planned, and the number of family units (two- and three-bedroom townhouses) will equal the number of one-bedroom units. If the number of one-bedroom units will be 3 times the number of three-bedroom units, find how many units of each type will be in the complex.

Respuesta :

Answer:

The x one bedroom is 93 unit, y two-bedroom is 62 units, and z three-bedroom is 31 units.

Step-by-step explanation:

Consider the provided information.

A total of 186 units are planned,

Apartment complex consisting of x one-bedroom units, y two-bedroom townhouses, and z three-bedroom townhouses.

This can be written as:

[tex]x + y + z = 186[/tex]   ......(1)

The number of family units (two- and three-bedroom townhouses) will equal the number of one-bedroom units.

[tex]x = y+z[/tex]   ......(2)

The number of one-bedroom units will be 3 times the number of three-bedroom units,

[tex]x = 3z[/tex]    ......(3)

From 3 and 2.

[tex]3z-z=y[/tex]

[tex]2z=y[/tex]

Substitute the value of x and y in equation 1.

[tex]3z+ 2z + z = 186[/tex]

[tex]6z= 186[/tex]

[tex]z= 31[/tex]

Substitute the value of z in equation 3

[tex]x = 3(31)[/tex]

[tex]x =93[/tex]

Substitute the value of z in [tex]2z=y[/tex]

[tex]2(31)=y[/tex]  

[tex]62=y[/tex]  

Thus, the x one bedroom is 93 unit, y two-bedroom is 62 units, and z three-bedroom is 31 units.

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