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9 September, 06:45

allie need to buy at least 12 candles plain candles sell for 4 each and scented candles sell for 7 each she can spend no more than 57

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  1. 9 September, 07:15
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    there were 9 plain candles and 3 scented candles.

    Explanation:

    Let she buys x candles for 4 each and buys y candles for 7 each.

    Then According to the questions

    x+y = 12 ... 1

    and

    4x+7y = 57 ... 2

    solving 1 and 2 we get the values of x and y as 9 and 3 respectively.

    So, there were 9 plain candles and 3 scented candles.
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