AMES, Iowa (AP) — Texas Tech went more than 17 minutes without an offensive rebound Saturday night at Iowa State. That’s because the Red Raiders didn’t really need one. Freshman star Jahmi’us Ramsey scored a game-high 25 points and Texas Tech made 15 of its first 19 shots en route to an 87-57 victory of the Cyclones at Hilton Coliseum. The Red Raiders (18-9, 9-5 Big 12) shot 72% from the field…