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10 April, 12:59

At a bargain store, Karl bought 3 items that each cost the same amount. Kellie bought 4 items that each cost the same amount, but each was $2.25 less than the items that Karl bought. Both Karl and Kellie paid the same amount of money. what was the individual cost of each person's items?

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  1. 10 April, 15:16
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    Hello ...

    Karl bought 3 items that all share the same price.

    p = price

    Then Kellie bought 4 items that each cost the same amount, but each was $2.25 less than the items that Karl bought. So, we will call this 4 (p - 2.55).

    We put parentheses around the p and 2.55 because Kellie's items all are $2.55 less than Karl's.

    Solution:

    3p = 4 (p - 2.55)

    Distributive Property:

    3x = 4p - 10.2

    -p = - 10.2

    Find the opposite of 4p.

    p = 10.2

    3 (10.2) = 4 (10.2 - 2.55)

    36=36.

    Karl's price - $10.2

    Question - $2.55

    $10.2 - $2.55 = $7.65

    Kellie's items - $7.65.

    Individual Prices:

    Karl - 10.2 / 3 = 3.4

    Kellie - 7.65 / 4 = 1.9125 = 1.91
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