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6 March, 09:53

Cruz has d $10-bills and 3 fewer $20-bills than he has $10-bills. Write an algebraic expression to represent how much money Cruz has in dollars. Simplify the expression, if possible.

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  1. 6 March, 09:54
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    So Cruz has d amount of 10$ bills.

    The value of this money is 10d in dollars.

    He has 3 fewer than d amount of 20$ bills.

    So he has (d-3) of these 20$ bills.

    The value of this money is 20 (d-3) in dollars.

    The total money that Cruz has is the sum of these values that we've already calculated:

    10d + 20 (d-3)

    From there, you'll need to distribute the 20 to each term in the second set of brackets, and then combine like-terms to simplify.
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