The number of dogs, D, housed at a county animal shelter is modeled by the function D  4 2M  50, where M is the number of months the shelter has been open. How many months will it take for 74 dogs to be housed at the shelter?

Respuesta :

Answer:

18 Months

Step-by-step explanation:

The function which models the number of dogs, D, housed at a county animal shelter is:

[tex]D=4\sqrt{2M} +50[/tex]

Where M=Number of months the shelter has been open.

Given the number of dogs, D = 74, we are required to determine the number of Months in which this will happen.

Using our given function:

[tex]D=74\\D=4\sqrt{2M} +50\\74=4\sqrt{2M} +50\\74-50=4\sqrt{2M}\\24=4\sqrt{2M}[/tex]

Dividing both sides by 4

[tex]6=\sqrt{2M}\\\text{Squaring both sides}\\6^2=(\sqrt{2M})^{2} \\2M=36\\\text{Dividing both sides by 2}\\M=18[/tex]

It will take 18 Months for 74 Dogs to be housed in the shelter.