Grades 9-10 Video Solutions 2026-2026_9-10

Video Transcription

Video Summary

Amber’s bicycle leaves a track where each wheel marks the puddle-length interval every time it completes a full rotation. The small wheel repeats its marks every \(3t\), and the large wheel repeats every \(7t\). Among the five options, only choice <strong>E</strong> fits all the visible marked segments consistently: the small wheel accounts for marks starting at \(0, 3t, 6t,\dots\), and the large wheel accounts for marks starting at \(7t, 14t, 21t,\dots\). Therefore, the correct track pattern is <strong>E</strong>.

Keywords

high-wheel bicycle

wheel tracks

puddle marks

rotation spacing

pattern matching

bicycle track

wheel rotation

puddle-length interval

marked segments

pattern E