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8 February, 00:46

The total value of a collection of nickels and dimes is $3.05. If the number of nickels is 19 greater than the number of dimes. Which equation determines how many coins there are of each kind?

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  1. 8 February, 01:12
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    Answer: 10d+5 (d-19) = 305

    Step-by-step explanation:

    let d = number of dimes; then, 10d = the total value of the dimes

    d + 19 = number of nickels; then, 5 (d + 19) = the total value of the nickels

    total value of dimes + total value of nickels = 305 cents

    10d + 5 (d + 19) = 305
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