Question 1113141
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The store has 60 positives for 6000 points and 17 detractors for -1700 points for a total of 4300.  For each additional positive they get another 100 points so if they get *[tex \Large x] additional positives they will have 100x additional points, but that must be divided by *[tex \Large 107\ +\ x] and the answer be <i>at least</i> 50.  So:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \frac{4300\ +\ 100x}{107\ +\ x}\ \geq\ 50]


Solve for *[tex \Large x] and, if necessary, round UP to the next whole number, then calculate *[tex \Large 107 + x].


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
<img src="http://c0rk.blogs.com/gr0undzer0/darwin-fish.jpg">
*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \  

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