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Pre-Algebra Math

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A bank teller is counting his money and notices that he has an equal number of tens and twenties. He also had $147 in other bills. If the total value of the bills he has is $1,167, how many tens and twenties does he have

What would be the equation in algebra?

  • Pre-Algebra Math -

    $1167 ttl value of bills
    $147 ttl value of other bills
    $1020 value of tens and twenties

    n = number of tens and twenties
    10n = ttl value of tens
    20n = ttl value of twenties

    10n + 20n = 1020
    Solve for n, number of tens and twenties
    (equal number of both)

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