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26 May, 10:04

Mrs. Whitlow gives her dog, Ekon, a weekly allowance to spend on treats. This week, Ekon

received $2.20 in nickels and dimes. If there is a total of 26 coins, how many of each coin did

Ekon get?

(Solve using systems of linear equation)

+5
Answers (1)
  1. 26 May, 10:27
    0
    8 nickels and 18 dimes

    Step-by-step explanation:

    Make a system of equations:

    n + d = 26

    5n + 10d = 220

    Solve by elimination by multiplying the top equation by - 5. This gives you:

    -5n - 5d = - 130

    5n + 10d = 220

    Then solve to get 5d = 90, then d = 18.

    Then plug 18 for d in the equation n + d = 26, so n + 18 = 26

    n = 8
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