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11 March, 12:44

The rules of a contest say there is a 1 out of 20 chance of winning a prize. 420 people enter the contest. Predict how many people will win a prize.

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  1. 11 March, 16:11
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    21

    Step-by-step explanation:

    1/20 = x/420

    Multiply both by 420

    420/20=x

    x=21
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