Mary purchased a concert ticket on a website. The original price of the ticket was $75. She used a coupon code to receive a 20% discou

Question

Mary purchased a concert ticket on a website. The original price of the ticket was $75. She used a
coupon code to receive a 20% discount. The website applied a 10% service fee to the discounted
price. Mary’s ticket was less than the original price by what percent?
A. 7%
B. 10%
C. 12%
D. 28%

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Caroline 3 months 2022-02-16T11:56:56+00:00 1 Answer 0 views 0

Answers ( )

    0
    2022-02-16T11:58:16+00:00

    Answer:

    Answer:

    Mary’s ticket was less than the original price by 12 percent

    Step-by-step explanation:

    1. Let’s calculate the 20% discount price Mary  received:

    75 – 0.2 * 75 = 75 – 15 = $ 60

    The discounted price is $ 60

    2. Let’s calculate the 10% service fee to the discounted price:

    60 + 0.1 * 60 = 60 + 6 = $ 66

    The price including the service fee is $ 66

    3. Finally, let’s calculate the less percentage than the original price:

    Let’s use the Direct Rule of Three, this way:

    Price     Percentage

    75              100

    66                x

    **************************

    75x = 66 * 100

    75x = 6,600

    x = 6,600/75

    x = 88

    Less percentage = 100 – 88 = 12%

    Mary ticket was less than the original price by 12 percent

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