Final answer:
A customer gets approximately 0.26 hours (or about 15.8 minutes) of bike use per dollar spent on the rental.
Step-by-step explanation:
To calculate the number of hours of bike use a customer gets for every dollar at the bicycle rental stand, we need to divide the total hours by the total cost. For this problem, renting for 5 hours costs $19.
Divide the total hours of bike use (5 hours) by the cost ($19): 5 hours / $19. Simplifying this gives you the hours of bike use per dollar.
5 hours / $19 = 0.2631578947 hours per dollar.
Therefore, a customer gets approximately 0.26 hours (or 15.8 minutes) of bike use for every dollar spent.