Martin has a total of 19 nickels (50.05) and dimes ($0.10) worth $1.65. How many of each type of coin does he have? <

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Martin has a total of 19 nickels (50.05) and dimes ($0.10) worth $1.65. How many of each type of coin does he have?

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Khánh Gia 2 weeks 2021-08-31T23:44:02+00:00 1 Answers 0 views 0

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    2021-08-31T23:45:37+00:00

    Answer: 19nickels and 7dimes.

    Ps i really don’t know where the 50.05 came from if it is suppose to be there then I really don’t know how to solve this.

    Step-by-step explanation:

    Ok so if you know that there are 19nickels, let n=number of nickels.

    The number of total coins subtracted by number of nickels will give you number of dimes.

    165-number of nickels=number of dimes

    Value of dimes=10(number of dimes) or total value of dimes/individual value (10cent)

    Then you can substitute total as $1.65 and get the value of nickels by multiplying by 5cent ( my teacher taught me using whole numbers to make it easier so I turned $1.65 to 165 cent). Since the value of the dimes is the value of nickels subtracted from the total, I can subtract 95 from 165 and divide the difference by 10, to get the number of dimes.

    5(n)=5(19)=95

    (165-95)/10=number of dimes

    70/10=7dimes

    You can check by multiplying 7×10 and 5×15 again and adding them together to see if they equal 165 cent.

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