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1 November, 20:08

Sean has a collection of coins. One tenth of the coins are from Europe. Thirty-two hundredth are from Asia. The rest are from Africa. Write a decimal to show the total part of the coins that are from Europe or Asia.

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  1. 1 November, 21:14
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    Lets write each part, the total will be x:

    (1/10) x = Europe

    3200 = Asia

    x - (1/10) x - 3200 = Africa

    Europe + Asia = (1/10) x + 3200 = x/10 + 3200

    = (320x + 1) / 3200

    that would be expressed as a fraction, and depends on the total of coins, x
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