<PRE><B>Question 366027</B>
The model N=10(4+3t)/1.25 describes the number of deer (N) in a park t years
 after 40 deer are introduced into the region.
 Approximately how long will it take the deep population to reach 224?
:
We can do it this way:
10({{{((4+3t))/1.25}}}) = 224
Divide both sides by 10
{{{((4+3t))/1.25}}} = 22.4
Multiply both sides by 1.25
4 + 3t = 1.25(22.4)
4 + 3t = 28
3t = 28 - 4
3t = 24
t = {{{24/3}}}
t = 8 yrs
:
:
You can check this in the original equation
10({{{((4+3(8)))/1.25}}}) =
10({{{((4+24))/1.25}}}) = 
10({{{28/1.25}}}) = 224 
10(22.4) = 224</PRE>