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28 April, 21:45

The function C (x) = 49.5x + 19.5 represents the cost (in dollars) of buying x concert tickets. How much does it cost to buy four tickets? How many tickets can you buy with $465?

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  1. 28 April, 22:29
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    To buy four tickets it would cost $217.5 because

    C (x) = 49.5 (4) + 19.5

    C (x) = 198 + 19.5

    C (x) = 217.5

    With $465 you could buy 9 tickets.

    C (x) = 49.5 (9) + 19.5

    C (x) = 445.5 + 19.5

    C (x) = 465
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