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How many terms of the arithmetic sequence 88, 85, 82, . . . appear before the number -17 appears?

 Jul 8, 2021
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Equation: y = -3x + 91
\(91 + 17 = 108 \\ 108 / 3 = 36 \\ y = -3(36) + 91 = -108 + 91 = -17\)

So 35 terms will come before -17 appers.

 Jul 8, 2021

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