The expression 1, point, 1, 1, left parenthesis, 0, point, 9, 5, p, right parenthesis1.11(0.95p) represents the total amount Marques paid for a jacket originally priced pp dollars. Which changes to the original price could have resulted in this expression?

1 answer

The expression given is \( 1.11(0.95p) \). To understand what changes to the original price \( p \) could lead to this expression, let's break it down:

  1. Understanding the components:

    • The \( 0.95p \) part suggests that Marques received a discount on the original price \( p \). Specifically, \( 0.95p \) indicates that he paid 95% of the original price, which means he received a 5% discount.
    • The \( 1.11 \) part means that after this discount, there’s an additional charge - a 11% increase in the price of the discounted amount.
  2. Interpreting the operation:

    • The sequence is first applying the discount and then applying an increase to the discounted price:
    • \( 0.95p \): original price \( p \) reduced by 5%.
    • Then multiplying by \( 1.11 \): this increases the new price by 11%.
  3. Final formulation:

    • Thus, the overall operation can be summarized as: \[ \text{Final Price} = 1.11 \times (0.95p) = 1.11 \cdot 0.95 \cdot p \]
    • Calculating \( 1.11 \cdot 0.95 \) gives \( 1.0545 \), which means that the total price Marques paid is approximately \( 1.0545p \).

From this analysis we can conclude:

  • Marques got a 5% discount on the original price \( p \).
  • After the discount, a 11% increase was applied to the discounted price of the jacket.

The final price Marques paid can be interpreted as an effective increase from the original price of approximately 5.45%.

So, the changes to the original price that resulted in the expression \( 1.11(0.95p) \) were:

  • A 5% discount followed by an 11% increase on the discounted price.