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a bank teller had $2750 in 10 dollar bills and5 dollar bills he had twice as many10 dollar billsas 5 dollar bills how many of each bill does he have

  • math -

    let x = the number of $5 bills.
    let y = the number of $10 bills.

    "a bank teller had $2750 in 10 dollar bills and5 dollar bills"
    5x + 10y = 2750

    "he had twice as many 10 dollar bills as 5 dollar bills"
    y = 2x

    Solve for x and y. Substitution is likely easiest.

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