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12 July, 13:22

Vance has 3 more than twice as many nickels than dimes. If he has $2.75, how many nickels does he have?

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  1. 12 July, 13:37
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    Number of nickles=n

    number of dimes=d

    vance hase 3 more than 2 times niicles than dimes

    n=2d+3

    each nickle is worth 5 cents and each dime is worth 10 cents so

    total worth=10d+5n cents

    we have the sentances

    10d+5n=275 and

    n=2d+3

    subsitute 2d+3 for n

    5 (2d+3) + 10d=275

    distribute

    10d+15+10d=2.75

    add like terms

    20d+15=275

    subtract 15 from both sides

    20d=260

    divdie both sides by 20

    d=13

    subsitute

    2d+3=n

    2 (13) + 3=n

    26+3=n

    29=n

    the answe ris 13 dimes and 29 nickles
  2. 12 July, 13:52
    0
    275-15=260

    260/2=130

    130/10=13

    so 13 dimes and 29 nickels

    My total is 275. Three nickels equal 15, so i remove it from the total, which makes it 260. 260 divided by two since you have twice as many nickels. 130. A dime has a value of 10, so 130/10, which equals 13. My ammount of nickels is twice the dimes (13) plus 3. 29 nickels.
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