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19 January, 22:49

Peter makes six cakes of 5 lb each three chocolate cakes and three vanilla cakes to serve at a party for 120 people. How many ounces of cake will each guest have? If the guest list increases to 150 guests, how many more cakes does Peter need to make?

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  1. 19 January, 23:45
    0
    5lb per cake * 6 cakes = 30lb

    30lb / 120 people = 0.25lb per person

    150 people - 120 people = 30 people

    0.25lb per person * 30 people = 7.5lb

    5lb___1 cake

    7.5lb___X=1.5 cakes

    (7.5lb * 1 cake) / 5lb = 1.5 cakes
  2. 20 January, 01:28
    0
    4 oz 2 cakes

    Step-by-step explanation:

    Since 6 cakes serve 120 people, each cake serves 120/6 = 20 people. Each cake weighs (5 lb) (16 oz/lb) = 80 oz. Then each person gets ...

    (80 oz) / (20 persons) = 4 oz/person

    __

    150 servings will require 150/20 = 7.5 cakes. Peter already has 6 cakes, so needs to make 2 more.
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