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24 January, 15:30

You and a friend are going bowling. Renting shoes and the first game of bowling costs $7.50 for each person. If each

game after the first costs $2.50 per person, write a formula for the cost, C, per person after 9 games.

A) Cg = $7.50 + (n - 1). $2.50

B) Cg = $2.50 + (n - 1). $7.50

C) Cg = $5.00 + (n - 1). $7.50

D) Cg = $5.00 + (n - 1). $2.50

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  1. 24 January, 18:41
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    A) Cg = $7.50 + (n - 1). $2.50

    Step-by-step explanation:

    The cost of Renting the shoes and the first game is a fixed cost, so it is a constant, $7.50.

    And any other cost will be added to this.

    The problem is looking for the cost after 9 games. But since the first game is already included in the $7.50, so we subtract the first game from the number of the total games played:

    n - 1

    where n = number of games played

    Each succeeding game costs $2.50. So whatever games left to pay, we multiply it by $2.50.

    (n - 1) $2.50

    Remember what was mentioned earlier, any other cost will be added to the constant and so:

    Cg = $7.50 + (n - 1) $2.50

    If you want to solve for the cost then just plug in the number of games:

    n = 9

    Cg = $7.50 + (n - 1) $2.50

    Cg = $7.50 + (9 - 1) $2.50

    Cg = $7.50 + (8) $2.50

    Cg = $7.50 + $20.00

    Cg = $27.50
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