Question 612664
 Melanie bought t things for d dollars. 
Each item cost d/t dollars
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If the price was increased k dollars per item
New price per item would be (d/t)+k
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How many items could Melanie by for 50 dollars?
# of items = (50 dollars)/[(d/t)+k] 
= 50/[(d+tk)/t]
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= 50t/(d+tk)
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Cheers,
Stan H.
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