anonymous
  • anonymous
When a popular running shoe is priced at $70, The Shoe House will sell 15 pairs each week. Using a survey, they have determined that for each decrease of $2 in price, 3 additional pairs will be sold each week. What selling price will give a weekly revenue of $2250?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
\[\rm Revenue = Price \cdot Pairs~Sold\]\[2250 = (70 - 2 \cdot n) \cdot (15 + 3 \cdot n)\]We can solve for \(n\) such that the above equation is satisfied. Then use the following relation to determine the price of the shoes that generates the required revenue. \[{\rm Price } = 70 - 2 \cdot n\]
anonymous
  • anonymous
so how do I solve for n?
anonymous
  • anonymous
Foil, then use the quadratic equation.

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