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8 December, 06:50

There is same number of pennies, nickels, and dimes in a wallet. Together they make $1.28. How many coins are there in the wallet?

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Answers (2)
  1. 8 December, 08:34
    0
    A = amount

    .01a +.05a +.1a = 1.28

    Combine like terms.

    .16a = 1.28

    Divide both sides by. 16.

    a = 8

    8 * 3 = 24

    There are 24 coins in the wallet.
  2. 8 December, 09:40
    0
    We call the number of each kind of coins: a

    We have the total money is a + 5a + 10a = 16a

    We have an equation 16a = $1.28 or 16a=128

    and we have a = 8

    And there are 8x3=24 coins

    have fun
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