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1 June, 21:59

Danny has a coin collection. 20% of his collection are quarters. If Danny has 13 quarters, how many coins does he have in his collection altogether? A) 26 B) 39 C) 42 D) 65

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  1. 1 June, 22:51
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    Answer: Danny had 65 coins altogether in his collection.

    Step-by-step explanation:

    Let x represent the number of coins that Danny has in his collection.

    20% of his collection are quarters. This means that the number of quarters that Danny has in his collection is

    20/100 * x = 0.2 * x = 0.2x

    If Danny has 13 quarters, it means that

    0.2x = 13

    Dividing the left hand side and the right hand side of the equation by 0.2, it becomes

    0.2x/0.2 = 13/0.2

    x = 65
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