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10 March, 05:03

Andy started reading a 250 page book. He can read 20 pages each day. What expression represents how many pages he will have left after x days?

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  1. 10 March, 06:16
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    The expression (250 - 20 x) represents the pages he will have left after x days.

    Step-by-step explanation:

    Total number of pages in the book = 250

    Number of books read by Andy per day = 20

    ⇒Number of pages read in x days = x (Number of pages read per day)

    = x (20) = 20 x

    So, Andy read (20 x) pages in x days.

    Now, the total pages left after x days = Total pages - Pages read in x days

    = 250 - (20 x)

    Hence, the expression (250 - 20 x) represents the pages he will have left after x days.
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