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26 November, 15:32

Mallory is on a budget and wants to determine which cereal is a better buy. A 10-ounce box of cereal costs $2.79, and a 13-ounce box of the same cereal costs $3.99.

i. Which box of cereal should Mallory buy?

ii. What is the difference between the two unit prices?

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Answers (2)
  1. 26 November, 15:39
    0
    10/2.79 = 3.584 $

    13/3.99 = 3.258 $

    Meaning the first option (10 ounce box) is more expensive because for every gram of cereal she pays more
  2. 26 November, 15:48
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    i. Mallory should buy the 10-ounce box of cereal.

    ii. Difference is that the 13-ounce cost more on 1-ounce.

    Step-by-step explanation:

    First find the ounce/cost. Which 1-ounce of the $2.79 box of cereal is $0.28/ounce. The $3.99 box of cereal is $0.31/ounce. Therefore the $2.79 is cheaper to buy. The difference is 13-ounce box (which is 3 cents more) cost more in ounce than the 10-ounce.
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