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Posted by on Friday, April 3, 2009 at 8:20pm.

Lianne has nineteen coins worth $1.45. Some of her coins are dimes & the rest are nickels. How many dimes does she have?

  • Math - , Friday, April 3, 2009 at 11:43pm

    d+n=19

    10d + 5n = 145
    divide this second equation by 5
    2d + n = 29

    subtract the first from the second...
    easy.....

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