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18 May, 17:19

Brian is ordering tickets online for a concert. the price of each ticket for the concert is t dollars. for online orders there is an additional charge of $11 per ticket and a service charge of $14 for the entire order. the cost for 7 tickets can be represented by the expression 7 (t + 11) + 14.

write two expressions equivalent to the cost expression. then, find the total cost of brian's online order if the price of each ticket for this concert is $33

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  1. 18 May, 17:35
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    7 tickets: 7 (t + 11) + 14

    Distribute the 7 inside the parentheses.

    (7t + 77) + 14

    Add 77 and 14.

    7t + 91

    (7t + 77) + 14 and 7t + 91 are two expressions equivalent to the cost expression.

    Now plug in 33 for t in the original cost expression.

    7 (t + 11) + 14

    7 (33 + 11) + 14

    Distribute 7 inside the parentheses.

    (231 + 77) + 14 = 322

    The total cost of Brain's online order is $322.
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