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24 January, 09:01

Dave bought 18 packets of cookies for $19.80. Each packet of cookies contains 10 cookies. Find the cost of each cookie to the nearest tenth of a cent.

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  1. 24 January, 11:52
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    There are 18 packets.

    Each packet has 10 cookies.

    Let T = total number of cookies.

    T = 10 (18)

    T = 180

    There are 180 cookies.

    Let C = cost of each cookie.

    Use the equation C = 19.80/T.

    You know what T is, right? Look above to see the value of T. Plug that T-value into the equation and solve for C.

    After that, round your answer as instructed.
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