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27 August, 23:39

Ariana has $1.40 worth of nickels and dimes. She had twic as many nickels as dimes. Determine the number of nickels and the number of dimes that Ariana has.

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  1. 27 August, 23:54
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    A).05n +.10d = $1.40

    B) n = 2d

    We multiply equation A) by - 20

    A) - n - 2d = - 28.00 then add it to B)

    B) n - 2d = 0

    -4d = - 28.00

    dimes = 7

    Therefore, nickels = 14

    7 dimes + 14 nickels = $1.40
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