Question

Mark’s model train can go 12 laps around its track in 4 minutes. If it runs at the same speed, how many laps can the train go in 9 minutes?Rate needed (laps/minutes)Unit RateInterpretation of unit rateExplain your thinking/Justifying your reasonSolution

Answer 1

rate = 12 laps/4 min = 3 laps/min

3 laps ------------------ 1 min

x ------------------ 9 min

x = (9 x 3) / 1

x = 27 laps in 9 min

Result 27 laps in 9 min