<PRE><B>Question 725735</B>
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You subtracted *[tex \LARGE 20%] of 3600.  That is not what the problem says.  The problem says that the guy had some salary, but you don&#39;t know what it is.  After 20% of the original salary is added to the original salary, the sum is 3600.  The reason you get the wrong answer is because 20% of 3600 (your subtraction) is more than 20% of the original smaller salary (the correct calculation for the amount of increase).


Let *[tex \LARGE x] represent the original salary amount.  Then *[tex \LARGE 0.20x] is the amount that the salary &lt;i&gt;&lt;b&gt;increased&lt;/b&gt;&lt;/i&gt;.  To this number you must add the amount of the original salary to get to the new salary, so:


Let *[tex \LARGE x\ +\ 0.20x\ =\ 3600]


Just solve for *[tex \LARGE x]


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
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My calculator said it, I believe it, that settles it
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