The sale price for coats is 160% of the purchase price. To achieve sales of at least $250 with jackets, the owner must buy and sell 4 jackets at $72 each, which is 160% of the purchase price ($45).
The student's question revolves around percent increase in price and sales calculations, which fall under the category of mathematics. In part a, to find the percent of the purchase price that the sale price represents, we divide the sale price by the purchase price and then multiply by 100 to convert the decimal to a percent.
Thus, the calculation is: (96 / 60) × 100 = 160%.
This means the sale price is 160% of the purchase price.
For part b, applying the same percent increase to a new purchase price of $45 for jackets, we multiply 45 by 1.6 to get the increased sale price of the jackets.
The resulting sale price for each jacket is $45 × 1.6 = $72.00.
To reach a sales goal of at least $250, we divide the goal by the new sale price per jacket. $250 / $72.00 = 3.47222 jackets.
Since only whole jackets can be sold, the owner must buy and sell 4 jackets to meet the sales goal.