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Research shows that for every $0.10 increase in the price of batteries, there is a 10 pack decrease per day. If a store normally sells 600 packs of batterues $4.95, what is the optimum orice to sell batteries at?

 

The Answer is $5.475, I'm looking for the process

 

This is how I started it, (possibly wrong): (4.95 + 0.1x)(600 - x) = y

 Dec 11, 2018
 #1
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i've solved it all good!

 Dec 11, 2018

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