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Scholmo reads 7 pages of his book on the first day and his rate of reading then goes up by 3 pages each day.

a) How many pages will he have read on the 8th day?
b) After how many days will he have read more than 425 pages?

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1 answer
  1. a = 7
    d = 3

    Now you can answer the questions:

    T8 = a+7d

    Sn = n/2 (2*7 + (n-1)*3) > 425

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