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11 November, 22:30

A store offers customers a 30 % discount on the price x of selected items. Then, the store takes off an additional 15 % off at the cash register. Write a price function P (x) that computes the final price of the item in terms of the original price x.

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  1. 11 November, 23:49
    0
    P (x) = 0.595x

    Step-by-step explanation:

    A store offers customers a a 30% discount on the price x of an item.

    Therefore, after 30% discount selling price of the item = [x - (30% of x) ]

    = (x - 0.30x)

    = 0.70x

    Then the store takes off an additional 15% off on the same item then the final selling price of the given item will be = 0.70x - (15% of 0.70x)

    = (0.70x - 0.105x)

    = 0.595x

    And the function that represents the final selling price will be

    P (x) = 0.595x
  2. 12 November, 01:32
    0
    P (x) = x*0.7*0.85=x*0.595

    Step-by-step explanation:

    from the 100% of the price, they make a 30 % discount, then the customers pay 70%. Then when the store takes off an additional 15 % off at the cash register, the costumers pay the 85% of the 70% they had to pay.

    P (x) = x*0.7*0.85=x*0.595

    then the total discount is 40.5%.
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