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10 August, 00:07

A jar contains only pennies, nickels, dimes, and quarters. There are 14 pennies, 28 dimes, and 16 quarters. The rest of the coins are nickels. There are 70 coins in all. How many of the coins are not nickels? If n represents the number of nickels in the jar, what equation could you use to find n?

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  1. 10 August, 01:47
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    Step-by-step explanation:

    Let n represent the number of nickels in the jar.

    The jar contains only pennies, nickels, dimes, and quarters. There are 14 pennies, 28 dimes, and 16 quarters. This means that the total number if pennies, dimes and quarters would be

    14 + 28 + 16 = 58

    This means that the number of coins that are not nickel is 58

    The total number of coins in the jar is 70. Therefore, the equation that can be used to find n is

    n + 58 = 70

    n = 70 - 58

    n = 12 nickels
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