A collection of 108 coins containing only quarters and nickels is worth $21. Which value could replace q on the char

Question

A collection of 108 coins containing only quarters and nickels is worth $21.

Which value could replace q on the chart?

21
108
21 – n
108 – n

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Rylee 3 days 2021-10-10T19:33:56+00:00 2 Answers 0

Answers ( )

    0
    2021-10-10T19:35:19+00:00

    Answer:

    The value could replace q is 108 – n ⇒ the last answer

    Step-by-step explanation:

    * Lets study the values of quarters and nickles

    – One quarter = 25 cents

    – One nickle = 5 cents

    – The number of coins is 108

    – The coins are nickles or quarters only

    – The coins worth $ 21

    * Lets solve the problem

    ∵ The number of coins is 108 coins

    – Let the quarter is q and the nickel is n

    ∴ q + n = 108 ⇒ (1)

    ∵ The coins worth $21

    ∵ $ 1 = 100 cents

    ∴ $21 = 21 × 100 = 2100 cents

    ∵ The quarter = 25 cents

    ∵ The nickels = 5 cents

    ∴ 25q + 5n = 2100 ⇒ (2)

    – To find the value which replace q use equation (1)

    ∵ q + n = 108 ⇒ subtract n from both sides

    ∴ q = 108 – n

    * The value could replace q is 108 – n

    0
    2021-10-10T19:35:51+00:00

    Answer:

    TLDR: 108-n on Edge

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