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9 October, 13:47

In a change jar, tom has nickels and dimes. the number of nickels is two times the number of dimes and the total amount of money in the jar is $1.20. how many dimes are in the jar? a) 6 b) 12 c) 10 d) 24

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  1. 9 October, 16:09
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    N=number of nickles

    d=number of dimes

    n is 2 times d

    n=2d

    total money is 1.20

    convert to cens

    120 cetns

    5n+10d=120

    n=2d

    5 (2d) + 10d=120

    10d+10d=120

    20d=120

    divide both sides by 120

    d=6

    6 dimes is answer

    answer is A, 6 dimes
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