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19 March, 09:00

you are having a garage sale. At Lowe's, a cash box cost $10 and for sale signs cost $7 each. You spent a total of $38 before taxes. How many for sale signs did you buy in addition to the cash box?

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Answers (2)
  1. 19 March, 09:05
    0
    4 sales signs

    Step-by-step explanation:

    7x + 10 = 38

    Subtract 10

    7x = 28

    Divide 4

    x = 4
  2. 19 March, 09:05
    0
    4 signs

    Step-by-step explanation:

    The total amount you spent is ...

    cash box cost + sign cost = total amount

    You are told the cash box costs $10, the signs are $7 each, and the total is $38. If n is the number of signs, then the total amount is ...

    $10 + $7 * n = $38

    Subtracting the cost of the cash box gives the amount you spent on signs:

    7n = 28

    Dividing by 7 gives the number of signs:

    28/7 = n = 4

    You bought 4 signs.
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