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16 November, 23:25

Laura is baking a cake. The recipe says that she has to mix 64 grams of chocolate powder to the flour. Laura knows that 1 cup of that particular chocolate powder has a mass of 128 grams. She added two over three of a cup of chocolate powder to the flour. Should Laura add more chocolate powder to make the exact recipe, or did she go over and by what amount?

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  1. 16 November, 23:34
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    Laura out too much chocolate powder in. If 1 cup has a mass of 128 grams, take it and decide it by 3. 128:3=42.7 Every 1/3 is equal to 42.7. (42.7) (2) = 85.3 This says how much Laura put in since she put in 2/3. 85.3-64=21.3 This shows how much more powder Laura put in.
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