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16 September, 07:52

While on vacation in Weston, Roscoe went out for a dinner that cost $90. If sales tax in Weston is 10% and Roscoe left a 20% tip on $90, what was the total cost of the meal?

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  1. 16 September, 09:11
    0
    Answer: $107

    Step-by-step explanation:

    Tip = 20 % of $90

    = 20/100 * $90

    =$18

    Sales tax at 10% = 10/100 * $90

    = $9

    Total cost = $90 + $18 + $9

    = $107
  2. 16 September, 09:14
    0
    117

    Step-by-step explanation:

    90 times 1.1 (the 1 is for the total amount which is ninety and the. 1 is for 10% because you have to move the decimal over 2) is 99

    90 times. 2 equals 18

    you then add 99 to 18 and the answer is 117
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