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What was the original price of an MP3 player that is advertised as on sale for [tex]25\%[/tex] off and the sale price is [tex]\$60[/tex]?

Sagot :

To determine the original price of the MP3 player before the discount, we can follow these steps:

1. Identify the sale discount and sale price:
The MP3 player is advertised with a 25% discount, and the sale price is [tex]$60. 2. Understand the relationship between the sale price and the original price: The sale price is the result of applying the discount to the original price. If the original price is \( P \), then the sale price is \( P \) minus the discount amount. Here, the discount is 25%, or 0.25, of the original price \( P \). 3. Set up the equation to find the original price: The sale price can be represented by the equation: \[ \text{Sale Price} = \text{Original Price} - (\text{Original Price} \times \text{Discount Percentage}) \] When we plug in the known values: \[ 60 = P - (P \times 0.25) \] 4. Simplify the equation: Factor out \( P \) on the right-hand side: \[ 60 = P (1 - 0.25) \] Simplify the expression inside the parentheses: \[ 60 = P \times 0.75 \] 5. Solve for the original price \( P \): To isolate \( P \), divide both sides of the equation by 0.75: \[ P = \frac{60}{0.75} \] When you calculate this, you get: \[ P = 80 \] Therefore, the original price of the MP3 player was \$[/tex]80.