<PRE><B>Question 700848</B>
&lt;br&gt;&lt;font face=&quot;Tahoma&quot;&gt;We need to set up some equations:&lt;br&gt;

{{{T=50x+125}}}&lt;br&gt;

{{{T=60x+75}}}&lt;br&gt;

Where T is our total cost, and x is the number of months.&lt;br&gt;

In order to find the number of months (x) where the total cost is equal,&lt;br&gt;

just set the two equations equal to each other:&lt;br&gt;

{{{50x+125=60x+75}}}&lt;br&gt;

{{{125=10x+75}}}&lt;br&gt;

{{{50=10x}}}&lt;br&gt;

{{{5=x}}}&lt;br&gt;

It appears that the total costs will be the same at the 5-month mark.&lt;br&gt;

Prior to 5 months, Nextel will be more expensive.&lt;br&gt;

After 5 months, AT&amp;T will be more expensive.&lt;br&gt;

I hope this helps!  Keep practicing!  :)&lt;br&gt;

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