Question

Jim rode his bike at a steady rate of 20 miles per hour. Given that his distance is d miles, is directly proportional to the time he rides, t hours, identify the constant proportionality and write a direct proportion equation.

Answer 1

the answer

we know that V = d / t, V is the speed
so d= Vx t, so the constant of proportionality is V=20

so we have as direct proportion equation d= 20t