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4 December, 02:33

Bella uses 2 sticks of butter for 20 cakes. she used 8 sticks of butter for 50 cakes. how many sticks of butter will be needed for 60 cakes.

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Answers (2)
  1. 4 December, 04:49
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    10 sticks because if she used 2 sticks for 20 cakes and she used 8 sticks for 50 cakes then for 60 cakes she would use 10 sticks because for every 10 cakes you would multiply it by 2
  2. 4 December, 05:49
    0
    Answer:10 sticks would be needed for 60 cakes.

    Step-by-step explanation:

    Bella uses 2 sticks of butter for 20 cakes. she used 8 sticks of butter for 50 cakes. Therefore, the number of cakes that she made per sticks of butter would be

    (50 - 20) / (8 - 2) = 30/6 = 5 cakes per stick.

    If we plot these values on a graph, the equation of the straight line can be represented in the slope intercept form, y = mx + c

    Where

    m = slope

    c = intercept

    We already got m as 6 cakes per stick. To determine the intercept c, we would substitute m = 5, x = 8 and y = 50 into y = mx + c. It becomes

    50 = 5 * 8 + c

    50 = 40 + c

    c = 50 - 40 = 10

    The equation becomes

    y = 5x + 10

    Therefore, the number of sticks of butter that would be needed for 60 cakes would be

    60 = 5x + 10

    5x = 60 - 10 = 50

    x = 50/5 = 10
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