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12 September, 05:08

Dave Bowers collects us gold coins He has a collection of 53 coins some are $10 coins, and the rest are $20 coins lf the face value of the coins is $750, how many of each denomination does he have?

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  1. 12 September, 08:08
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    Let x be the number of coins at $10

    The number of coins at $20 are 53-x

    Hence the equation:

    10. x + 20 (53-x) = 750

    Solve for x & you will find x = 31 (at $10/each) and the others, 22 at $20 each)
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