college algebra

tom has 17 coins in his pocket worth $1.30. If he has only dimes and nickles, how many coins of each does he have?

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  1. number of dimes ---> x
    number of nickels ---> 17-x)

    solve for x .....

    10x + 5(17-x) = 130

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  2. 8 nickels 9 dimes

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