S_7 = \frac72 (4(7) + 10) = \frac72 (38) = 7 \cdot 19 = 133 \leq 150 - AMAZONAWS

Solving the Equation: S₇ = \frac{7}{2}(4(7) + 10) = 133 — And Why It’s Less Than or Equal to 150

📅 March 11, 2026 👤 scraface

Mar 11, 2026

$S_7 = \frac{7}{2} (4(7) + 10) = \frac{7}{2} (38) = 7 \cdot 19 = 133 \leq 150$