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Ken wants to get more exercise so he begins by walking for 20 minutes. Eachday...

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Algebra

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Ken wants to get more exercise so he begins by walking for 20 minutes. Eachday for two weeks, he increases the length of time that he walks by 5 minutes.At the end of two weeks, the length of time that he has walked each day is givenby the following arithmetic sequence:20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85The total length of time that Ken has walked in two weeks is the sum of theterms of this arithmetic sequence:20+ 25 +30 +35+ 40 + 45 + 50 + 55+60 +65 + 70 +75 + 80 +85This sum is called a series.

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