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23 August, 22:58

Kevin and Randy Muise have a jar containing 4444 coins, all of which are either quarters or nickels. The total value of the coins in the jar is $nbsp 7.20 7.20. How many of each type of coin do they have?

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  1. 23 August, 23:06
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    they have 25 quarters and 19 nickels

    Explanation:

    let N = number of nickels

    let Q = number of quarters

    5N + 25Q = 720

    N + Q = 44

    N = 44 - Q (now we must replace)

    5 (44 - Q) + 25Q = 720

    220 - 5Q + 25Q = 720

    20Q = 720 - 220 = 500

    Q = 500 / 20 = 25

    N = 44 - 25 = 19
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