If Han had been riding for t hours, how long has Priya been riding?

Question

Priya and Han are biking in the same direction on th same path. Han is riding at a constant speed of 16 miles per hour. Write an expression that shows how many miles Han has gone after t hours. Priya started riding a half hour before han. If Han had been riding for t hours, how long has Priya been riding?

Answer 1

distance  = speed * time:

d = s*t

 

Han's Distance (D):

s = 16 mph (Given)

D = 16*t 

 

Priya started riding a half hour BEFORE Han, meaning you simply add half an hour (0.5).  

Priya's Time (T):

T = t + 0.5