Question 1205073
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<pre>

    y = 100 - 2.50*x.    <U>ANSWER</U>
</pre>

Solved.  


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The formula is SELF-EXPLANATORY.


If you do not understand its meaning from the first glance,
then look at it and listen attentively: it will tell you a whole story.


Why ? - Because the formulas can speak for themselves.

You only need to listen what it will tell you.