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25 December, 18:02

1.

Joseph brought chocolate and vanilla cupcake to school for his birthday. 53 students decided to take a cupcake, and 80% of them picked vanilla. How many people picked a vanilla cupcake?

Find the volume of the hemisphere. Round your answer to the nearest tenth of 7cm.

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  1. 25 December, 19:23
    0
    1. 42 kids

    2. I need more info.
  2. 25 December, 19:42
    0
    People who picked up vanilla cupcakes = 80% x 53

    80% x 53 = 0.8 x 53 = 42 people (nearest whole number)

    42 people picked vanilla cupcakes

    Volume of a sphere = 4/3πr³

    4/3πr³ = 4/3π (7) ³ = 1436.8 cm³

    The volume of the sphere is 1436.8 cm³
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