Jan and Julie went for a bike ride. They started their ride at 09:30 and finished at 15:15. • They stopped for a drink for 20 minutes • They took 45 minute for lunch • They rested for 10 minutes. How long were they riding on their bikes for? (excluding stops)

Given:

Jan and Julie started their ride at 09:30 and finished at 15:15.

Stopped for a drink = 20 minutes

Lunch = 45 minute

Rest = 10 minutes

To find:

Time they are riding on their bikes (excluding stops).

Solution:

Jan and Julie started their ride at 09:30 and finished at 15:15.

So, total time of ride including stops is 5 hours 45 minutes or we can say 345 minutes calculated as

We need subtract Drink, lunch and rest time from the total time to get the Time they are riding on their bikes (excluding stops) is

Therefore, the total time they are riding on their bikes (excluding stops) is 270 minutes.

answer:

the position of equilibrium will shift to the left.

step-by-step explanation:

the general equation for the dissociation of a weak base is

b + h₂o   ⇌   bh⁺ + oh⁻

according to le châtelier's principle, when a stress is applied to a system at equilibrium, the system will respond in a way that tends to relieve the stress.

if you apply a stress by adding more bh⁺ or oh⁻,   the system will respond by moving in a direction that gets rid of the added ions.

the position of equilibrium will shift to the left, forming more of the undissociated base.

r and t.

both are 64 degrees.