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28 June, 13:12

Eric has 130 coins consisting of nickels and quarters the coins combined value comes to 15.90

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Answers (2)
  1. 28 June, 13:16
    0
    A) N + Q = 130

    B).05N +.25Q = 15.90

    Multiplying equation A by -.05 equals

    A) -.05N -.05Q = - 6.50 then adding this to B)

    B).05N +.25Q = 15.90 Equals

    .20Q = 9.40

    Quarters = 47

    Nickels = 83

    .05*83 +.25*47 = 4.15 + 11.75 = 15.90
  2. 28 June, 13:33
    0
    Quarters = 47

    Nickels = 83

    Step-by-step explanation:

    A) N + Q = 130

    B).05N +.25Q = 15.90

    Multiplying equation A by -.05 equals

    A) -.05N -.05Q = - 6.50 then adding this to B)

    B).05N +.25Q = 15.90 Equals

    .20Q = 9.40

    Quarters = 47

    Nickels = 83

    .05*83 +.25*47 = 4.15 + 11.75 = 15.90
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