Structures of Expression

Question

As a speed skater, Kyle cycles between sprinting and recovering on the 111.12 meter short track during practice every day for 50 minutes.

Let t be the time in hours that Kyle sprints during a practice.

Sprint Speed: 48 km/hr

Recovery: 18 km/hr

Write an unsimplified expression to represent the total distance Kyle skates.

Answer 1

If t= time sprinting then (50-t)= time recovering

Distance = rate x time= t(48) + (50-t)18